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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Successful build of RomanNumeralKit with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 4024

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11643:12: warning: let 'MMMDCCCLXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11641 |
11642 | /// The Roman numeral representing the Arabic numeral "3873".
11643 | public let MMMDCCCLXXIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .I, .I, .I])
      |            |- warning: let 'MMMDCCCLXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11644 |
11645 | /// The Roman numeral representing the Arabic numeral "3874".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11646:12: warning: let 'MMMDCCCLXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11644 |
11645 | /// The Roman numeral representing the Arabic numeral "3874".
11646 | public let MMMDCCCLXXIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .IV])
      |            |- warning: let 'MMMDCCCLXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11647 |
11648 | /// The Roman numeral representing the Arabic numeral "3875".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11649:12: warning: let 'MMMDCCCLXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11647 |
11648 | /// The Roman numeral representing the Arabic numeral "3875".
11649 | public let MMMDCCCLXXV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .V])
      |            |- warning: let 'MMMDCCCLXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11650 |
11651 | /// The Roman numeral representing the Arabic numeral "3876".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11652:12: warning: let 'MMMDCCCLXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11650 |
11651 | /// The Roman numeral representing the Arabic numeral "3876".
11652 | public let MMMDCCCLXXVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .V, .I])
      |            |- warning: let 'MMMDCCCLXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11653 |
11654 | /// The Roman numeral representing the Arabic numeral "3877".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11655:12: warning: let 'MMMDCCCLXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11653 |
11654 | /// The Roman numeral representing the Arabic numeral "3877".
11655 | public let MMMDCCCLXXVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .V, .I, .I])
      |            |- warning: let 'MMMDCCCLXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11656 |
11657 | /// The Roman numeral representing the Arabic numeral "3878".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11658:12: warning: let 'MMMDCCCLXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11656 |
11657 | /// The Roman numeral representing the Arabic numeral "3878".
11658 | public let MMMDCCCLXXVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .V, .I, .I, .I])
      |            |- warning: let 'MMMDCCCLXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11659 |
11660 | /// The Roman numeral representing the Arabic numeral "3879".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11661:12: warning: let 'MMMDCCCLXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11659 |
11660 | /// The Roman numeral representing the Arabic numeral "3879".
11661 | public let MMMDCCCLXXIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .IX])
      |            |- warning: let 'MMMDCCCLXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11662 |
11663 | /// The Roman numeral representing the Arabic numeral "3880".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11664:12: warning: let 'MMMDCCCLXXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11662 |
11663 | /// The Roman numeral representing the Arabic numeral "3880".
11664 | public let MMMDCCCLXXX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X])
      |            |- warning: let 'MMMDCCCLXXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11665 |
11666 | /// The Roman numeral representing the Arabic numeral "3881".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11667:12: warning: let 'MMMDCCCLXXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11665 |
11666 | /// The Roman numeral representing the Arabic numeral "3881".
11667 | public let MMMDCCCLXXXI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .I])
      |            |- warning: let 'MMMDCCCLXXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11668 |
11669 | /// The Roman numeral representing the Arabic numeral "3882".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11670:12: warning: let 'MMMDCCCLXXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11668 |
11669 | /// The Roman numeral representing the Arabic numeral "3882".
11670 | public let MMMDCCCLXXXII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .I, .I])
      |            |- warning: let 'MMMDCCCLXXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11671 |
11672 | /// The Roman numeral representing the Arabic numeral "3883".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11673:12: warning: let 'MMMDCCCLXXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11671 |
11672 | /// The Roman numeral representing the Arabic numeral "3883".
11673 | public let MMMDCCCLXXXIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .I, .I, .I])
      |            |- warning: let 'MMMDCCCLXXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11674 |
11675 | /// The Roman numeral representing the Arabic numeral "3884".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11676:12: warning: let 'MMMDCCCLXXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11674 |
11675 | /// The Roman numeral representing the Arabic numeral "3884".
11676 | public let MMMDCCCLXXXIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .IV])
      |            |- warning: let 'MMMDCCCLXXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11677 |
11678 | /// The Roman numeral representing the Arabic numeral "3885".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11679:12: warning: let 'MMMDCCCLXXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11677 |
11678 | /// The Roman numeral representing the Arabic numeral "3885".
11679 | public let MMMDCCCLXXXV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .V])
      |            |- warning: let 'MMMDCCCLXXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11680 |
11681 | /// The Roman numeral representing the Arabic numeral "3886".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11682:12: warning: let 'MMMDCCCLXXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11680 |
11681 | /// The Roman numeral representing the Arabic numeral "3886".
11682 | public let MMMDCCCLXXXVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .V, .I])
      |            |- warning: let 'MMMDCCCLXXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11683 |
11684 | /// The Roman numeral representing the Arabic numeral "3887".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11685:12: warning: let 'MMMDCCCLXXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11683 |
11684 | /// The Roman numeral representing the Arabic numeral "3887".
11685 | public let MMMDCCCLXXXVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .V, .I, .I])
      |            |- warning: let 'MMMDCCCLXXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11686 |
11687 | /// The Roman numeral representing the Arabic numeral "3888".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11688:12: warning: let 'MMMDCCCLXXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11686 |
11687 | /// The Roman numeral representing the Arabic numeral "3888".
11688 | public let MMMDCCCLXXXVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .V, .I, .I, .I])
      |            |- warning: let 'MMMDCCCLXXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11689 |
11690 | /// The Roman numeral representing the Arabic numeral "3889".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11691:12: warning: let 'MMMDCCCLXXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11689 |
11690 | /// The Roman numeral representing the Arabic numeral "3889".
11691 | public let MMMDCCCLXXXIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .L, .X, .X, .X, .IX])
      |            |- warning: let 'MMMDCCCLXXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCLXXXIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11692 |
11693 | /// The Roman numeral representing the Arabic numeral "3890".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11694:12: warning: let 'MMMDCCCXC' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11692 |
11693 | /// The Roman numeral representing the Arabic numeral "3890".
11694 | public let MMMDCCCXC = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC])
      |            |- warning: let 'MMMDCCCXC' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXC' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11695 |
11696 | /// The Roman numeral representing the Arabic numeral "3891".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11697:12: warning: let 'MMMDCCCXCI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11695 |
11696 | /// The Roman numeral representing the Arabic numeral "3891".
11697 | public let MMMDCCCXCI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .I])
      |            |- warning: let 'MMMDCCCXCI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11698 |
11699 | /// The Roman numeral representing the Arabic numeral "3892".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11700:12: warning: let 'MMMDCCCXCII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11698 |
11699 | /// The Roman numeral representing the Arabic numeral "3892".
11700 | public let MMMDCCCXCII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .I, .I])
      |            |- warning: let 'MMMDCCCXCII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11701 |
11702 | /// The Roman numeral representing the Arabic numeral "3893".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11703:12: warning: let 'MMMDCCCXCIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11701 |
11702 | /// The Roman numeral representing the Arabic numeral "3893".
11703 | public let MMMDCCCXCIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .I, .I, .I])
      |            |- warning: let 'MMMDCCCXCIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11704 |
11705 | /// The Roman numeral representing the Arabic numeral "3894".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11706:12: warning: let 'MMMDCCCXCIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11704 |
11705 | /// The Roman numeral representing the Arabic numeral "3894".
11706 | public let MMMDCCCXCIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .IV])
      |            |- warning: let 'MMMDCCCXCIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11707 |
11708 | /// The Roman numeral representing the Arabic numeral "3895".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11709:12: warning: let 'MMMDCCCXCV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11707 |
11708 | /// The Roman numeral representing the Arabic numeral "3895".
11709 | public let MMMDCCCXCV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .V])
      |            |- warning: let 'MMMDCCCXCV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11710 |
11711 | /// The Roman numeral representing the Arabic numeral "3896".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11712:12: warning: let 'MMMDCCCXCVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11710 |
11711 | /// The Roman numeral representing the Arabic numeral "3896".
11712 | public let MMMDCCCXCVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .V, .I])
      |            |- warning: let 'MMMDCCCXCVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11713 |
11714 | /// The Roman numeral representing the Arabic numeral "3897".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11715:12: warning: let 'MMMDCCCXCVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11713 |
11714 | /// The Roman numeral representing the Arabic numeral "3897".
11715 | public let MMMDCCCXCVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .V, .I, .I])
      |            |- warning: let 'MMMDCCCXCVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11716 |
11717 | /// The Roman numeral representing the Arabic numeral "3898".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11718:12: warning: let 'MMMDCCCXCVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11716 |
11717 | /// The Roman numeral representing the Arabic numeral "3898".
11718 | public let MMMDCCCXCVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .V, .I, .I, .I])
      |            |- warning: let 'MMMDCCCXCVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11719 |
11720 | /// The Roman numeral representing the Arabic numeral "3899".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11721:12: warning: let 'MMMDCCCXCIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11719 |
11720 | /// The Roman numeral representing the Arabic numeral "3899".
11721 | public let MMMDCCCXCIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .D, .C, .C, .C, .XC, .IX])
      |            |- warning: let 'MMMDCCCXCIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMDCCCXCIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11722 |
11723 | /// The Roman numeral representing the Arabic numeral "3900".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11724:12: warning: let 'MMMCM' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11722 |
11723 | /// The Roman numeral representing the Arabic numeral "3900".
11724 | public let MMMCM = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM])
      |            |- warning: let 'MMMCM' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCM' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11725 |
11726 | /// The Roman numeral representing the Arabic numeral "3901".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11727:12: warning: let 'MMMCMI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11725 |
11726 | /// The Roman numeral representing the Arabic numeral "3901".
11727 | public let MMMCMI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .I])
      |            |- warning: let 'MMMCMI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11728 |
11729 | /// The Roman numeral representing the Arabic numeral "3902".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11730:12: warning: let 'MMMCMII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11728 |
11729 | /// The Roman numeral representing the Arabic numeral "3902".
11730 | public let MMMCMII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .I, .I])
      |            |- warning: let 'MMMCMII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11731 |
11732 | /// The Roman numeral representing the Arabic numeral "3903".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11733:12: warning: let 'MMMCMIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11731 |
11732 | /// The Roman numeral representing the Arabic numeral "3903".
11733 | public let MMMCMIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .I, .I, .I])
      |            |- warning: let 'MMMCMIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11734 |
11735 | /// The Roman numeral representing the Arabic numeral "3904".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11736:12: warning: let 'MMMCMIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11734 |
11735 | /// The Roman numeral representing the Arabic numeral "3904".
11736 | public let MMMCMIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .IV])
      |            |- warning: let 'MMMCMIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11737 |
11738 | /// The Roman numeral representing the Arabic numeral "3905".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11739:12: warning: let 'MMMCMV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11737 |
11738 | /// The Roman numeral representing the Arabic numeral "3905".
11739 | public let MMMCMV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .V])
      |            |- warning: let 'MMMCMV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11740 |
11741 | /// The Roman numeral representing the Arabic numeral "3906".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11742:12: warning: let 'MMMCMVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11740 |
11741 | /// The Roman numeral representing the Arabic numeral "3906".
11742 | public let MMMCMVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .V, .I])
      |            |- warning: let 'MMMCMVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11743 |
11744 | /// The Roman numeral representing the Arabic numeral "3907".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11745:12: warning: let 'MMMCMVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11743 |
11744 | /// The Roman numeral representing the Arabic numeral "3907".
11745 | public let MMMCMVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .V, .I, .I])
      |            |- warning: let 'MMMCMVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11746 |
11747 | /// The Roman numeral representing the Arabic numeral "3908".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11748:12: warning: let 'MMMCMVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11746 |
11747 | /// The Roman numeral representing the Arabic numeral "3908".
11748 | public let MMMCMVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11749 |
11750 | /// The Roman numeral representing the Arabic numeral "3909".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11751:12: warning: let 'MMMCMIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11749 |
11750 | /// The Roman numeral representing the Arabic numeral "3909".
11751 | public let MMMCMIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .IX])
      |            |- warning: let 'MMMCMIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11752 |
11753 | /// The Roman numeral representing the Arabic numeral "3910".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11754:12: warning: let 'MMMCMX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11752 |
11753 | /// The Roman numeral representing the Arabic numeral "3910".
11754 | public let MMMCMX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X])
      |            |- warning: let 'MMMCMX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11755 |
11756 | /// The Roman numeral representing the Arabic numeral "3911".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11757:12: warning: let 'MMMCMXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11755 |
11756 | /// The Roman numeral representing the Arabic numeral "3911".
11757 | public let MMMCMXI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .I])
      |            |- warning: let 'MMMCMXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11758 |
11759 | /// The Roman numeral representing the Arabic numeral "3912".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11760:12: warning: let 'MMMCMXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11758 |
11759 | /// The Roman numeral representing the Arabic numeral "3912".
11760 | public let MMMCMXII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .I, .I])
      |            |- warning: let 'MMMCMXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11761 |
11762 | /// The Roman numeral representing the Arabic numeral "3913".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11763:12: warning: let 'MMMCMXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11761 |
11762 | /// The Roman numeral representing the Arabic numeral "3913".
11763 | public let MMMCMXIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .I, .I, .I])
      |            |- warning: let 'MMMCMXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11764 |
11765 | /// The Roman numeral representing the Arabic numeral "3914".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11766:12: warning: let 'MMMCMXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11764 |
11765 | /// The Roman numeral representing the Arabic numeral "3914".
11766 | public let MMMCMXIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .IV])
      |            |- warning: let 'MMMCMXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11767 |
11768 | /// The Roman numeral representing the Arabic numeral "3915".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11769:12: warning: let 'MMMCMXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11767 |
11768 | /// The Roman numeral representing the Arabic numeral "3915".
11769 | public let MMMCMXV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .V])
      |            |- warning: let 'MMMCMXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11770 |
11771 | /// The Roman numeral representing the Arabic numeral "3916".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11772:12: warning: let 'MMMCMXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11770 |
11771 | /// The Roman numeral representing the Arabic numeral "3916".
11772 | public let MMMCMXVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .V, .I])
      |            |- warning: let 'MMMCMXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11773 |
11774 | /// The Roman numeral representing the Arabic numeral "3917".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11775:12: warning: let 'MMMCMXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11773 |
11774 | /// The Roman numeral representing the Arabic numeral "3917".
11775 | public let MMMCMXVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .V, .I, .I])
      |            |- warning: let 'MMMCMXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11776 |
11777 | /// The Roman numeral representing the Arabic numeral "3918".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11778:12: warning: let 'MMMCMXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11776 |
11777 | /// The Roman numeral representing the Arabic numeral "3918".
11778 | public let MMMCMXVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11779 |
11780 | /// The Roman numeral representing the Arabic numeral "3919".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11781:12: warning: let 'MMMCMXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11779 |
11780 | /// The Roman numeral representing the Arabic numeral "3919".
11781 | public let MMMCMXIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .IX])
      |            |- warning: let 'MMMCMXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11782 |
11783 | /// The Roman numeral representing the Arabic numeral "3920".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11784:12: warning: let 'MMMCMXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11782 |
11783 | /// The Roman numeral representing the Arabic numeral "3920".
11784 | public let MMMCMXX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X])
      |            |- warning: let 'MMMCMXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11785 |
11786 | /// The Roman numeral representing the Arabic numeral "3921".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11787:12: warning: let 'MMMCMXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11785 |
11786 | /// The Roman numeral representing the Arabic numeral "3921".
11787 | public let MMMCMXXI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .I])
      |            |- warning: let 'MMMCMXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11788 |
11789 | /// The Roman numeral representing the Arabic numeral "3922".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11790:12: warning: let 'MMMCMXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11788 |
11789 | /// The Roman numeral representing the Arabic numeral "3922".
11790 | public let MMMCMXXII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .I, .I])
      |            |- warning: let 'MMMCMXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11791 |
11792 | /// The Roman numeral representing the Arabic numeral "3923".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11793:12: warning: let 'MMMCMXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11791 |
11792 | /// The Roman numeral representing the Arabic numeral "3923".
11793 | public let MMMCMXXIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .I, .I, .I])
      |            |- warning: let 'MMMCMXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11794 |
11795 | /// The Roman numeral representing the Arabic numeral "3924".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11796:12: warning: let 'MMMCMXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11794 |
11795 | /// The Roman numeral representing the Arabic numeral "3924".
11796 | public let MMMCMXXIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .IV])
      |            |- warning: let 'MMMCMXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11797 |
11798 | /// The Roman numeral representing the Arabic numeral "3925".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11799:12: warning: let 'MMMCMXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11797 |
11798 | /// The Roman numeral representing the Arabic numeral "3925".
11799 | public let MMMCMXXV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .V])
      |            |- warning: let 'MMMCMXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11800 |
11801 | /// The Roman numeral representing the Arabic numeral "3926".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11802:12: warning: let 'MMMCMXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11800 |
11801 | /// The Roman numeral representing the Arabic numeral "3926".
11802 | public let MMMCMXXVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .V, .I])
      |            |- warning: let 'MMMCMXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11803 |
11804 | /// The Roman numeral representing the Arabic numeral "3927".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11805:12: warning: let 'MMMCMXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11803 |
11804 | /// The Roman numeral representing the Arabic numeral "3927".
11805 | public let MMMCMXXVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .V, .I, .I])
      |            |- warning: let 'MMMCMXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11806 |
11807 | /// The Roman numeral representing the Arabic numeral "3928".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11808:12: warning: let 'MMMCMXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11806 |
11807 | /// The Roman numeral representing the Arabic numeral "3928".
11808 | public let MMMCMXXVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11809 |
11810 | /// The Roman numeral representing the Arabic numeral "3929".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11811:12: warning: let 'MMMCMXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11809 |
11810 | /// The Roman numeral representing the Arabic numeral "3929".
11811 | public let MMMCMXXIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .IX])
      |            |- warning: let 'MMMCMXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11812 |
11813 | /// The Roman numeral representing the Arabic numeral "3930".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11814:12: warning: let 'MMMCMXXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11812 |
11813 | /// The Roman numeral representing the Arabic numeral "3930".
11814 | public let MMMCMXXX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X])
      |            |- warning: let 'MMMCMXXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11815 |
11816 | /// The Roman numeral representing the Arabic numeral "3931".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11817:12: warning: let 'MMMCMXXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11815 |
11816 | /// The Roman numeral representing the Arabic numeral "3931".
11817 | public let MMMCMXXXI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .I])
      |            |- warning: let 'MMMCMXXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11818 |
11819 | /// The Roman numeral representing the Arabic numeral "3932".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11820:12: warning: let 'MMMCMXXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11818 |
11819 | /// The Roman numeral representing the Arabic numeral "3932".
11820 | public let MMMCMXXXII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .I, .I])
      |            |- warning: let 'MMMCMXXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11821 |
11822 | /// The Roman numeral representing the Arabic numeral "3933".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11823:12: warning: let 'MMMCMXXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11821 |
11822 | /// The Roman numeral representing the Arabic numeral "3933".
11823 | public let MMMCMXXXIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .I, .I, .I])
      |            |- warning: let 'MMMCMXXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11824 |
11825 | /// The Roman numeral representing the Arabic numeral "3934".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11826:12: warning: let 'MMMCMXXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11824 |
11825 | /// The Roman numeral representing the Arabic numeral "3934".
11826 | public let MMMCMXXXIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .IV])
      |            |- warning: let 'MMMCMXXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11827 |
11828 | /// The Roman numeral representing the Arabic numeral "3935".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11829:12: warning: let 'MMMCMXXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11827 |
11828 | /// The Roman numeral representing the Arabic numeral "3935".
11829 | public let MMMCMXXXV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .V])
      |            |- warning: let 'MMMCMXXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11830 |
11831 | /// The Roman numeral representing the Arabic numeral "3936".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11832:12: warning: let 'MMMCMXXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11830 |
11831 | /// The Roman numeral representing the Arabic numeral "3936".
11832 | public let MMMCMXXXVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .V, .I])
      |            |- warning: let 'MMMCMXXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11833 |
11834 | /// The Roman numeral representing the Arabic numeral "3937".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11835:12: warning: let 'MMMCMXXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11833 |
11834 | /// The Roman numeral representing the Arabic numeral "3937".
11835 | public let MMMCMXXXVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .V, .I, .I])
      |            |- warning: let 'MMMCMXXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11836 |
11837 | /// The Roman numeral representing the Arabic numeral "3938".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11838:12: warning: let 'MMMCMXXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11836 |
11837 | /// The Roman numeral representing the Arabic numeral "3938".
11838 | public let MMMCMXXXVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMXXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11839 |
11840 | /// The Roman numeral representing the Arabic numeral "3939".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11841:12: warning: let 'MMMCMXXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11839 |
11840 | /// The Roman numeral representing the Arabic numeral "3939".
11841 | public let MMMCMXXXIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .X, .X, .X, .IX])
      |            |- warning: let 'MMMCMXXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXXXIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11842 |
11843 | /// The Roman numeral representing the Arabic numeral "3940".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11844:12: warning: let 'MMMCMXL' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11842 |
11843 | /// The Roman numeral representing the Arabic numeral "3940".
11844 | public let MMMCMXL = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL])
      |            |- warning: let 'MMMCMXL' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXL' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11845 |
11846 | /// The Roman numeral representing the Arabic numeral "3941".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11847:12: warning: let 'MMMCMXLI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11845 |
11846 | /// The Roman numeral representing the Arabic numeral "3941".
11847 | public let MMMCMXLI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .I])
      |            |- warning: let 'MMMCMXLI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11848 |
11849 | /// The Roman numeral representing the Arabic numeral "3942".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11850:12: warning: let 'MMMCMXLII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11848 |
11849 | /// The Roman numeral representing the Arabic numeral "3942".
11850 | public let MMMCMXLII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .I, .I])
      |            |- warning: let 'MMMCMXLII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11851 |
11852 | /// The Roman numeral representing the Arabic numeral "3943".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11853:12: warning: let 'MMMCMXLIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11851 |
11852 | /// The Roman numeral representing the Arabic numeral "3943".
11853 | public let MMMCMXLIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .I, .I, .I])
      |            |- warning: let 'MMMCMXLIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11854 |
11855 | /// The Roman numeral representing the Arabic numeral "3944".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11856:12: warning: let 'MMMCMXLIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11854 |
11855 | /// The Roman numeral representing the Arabic numeral "3944".
11856 | public let MMMCMXLIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .IV])
      |            |- warning: let 'MMMCMXLIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11857 |
11858 | /// The Roman numeral representing the Arabic numeral "3945".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11859:12: warning: let 'MMMCMXLV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11857 |
11858 | /// The Roman numeral representing the Arabic numeral "3945".
11859 | public let MMMCMXLV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .V])
      |            |- warning: let 'MMMCMXLV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11860 |
11861 | /// The Roman numeral representing the Arabic numeral "3946".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11862:12: warning: let 'MMMCMXLVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11860 |
11861 | /// The Roman numeral representing the Arabic numeral "3946".
11862 | public let MMMCMXLVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .V, .I])
      |            |- warning: let 'MMMCMXLVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11863 |
11864 | /// The Roman numeral representing the Arabic numeral "3947".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11865:12: warning: let 'MMMCMXLVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11863 |
11864 | /// The Roman numeral representing the Arabic numeral "3947".
11865 | public let MMMCMXLVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .V, .I, .I])
      |            |- warning: let 'MMMCMXLVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11866 |
11867 | /// The Roman numeral representing the Arabic numeral "3948".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11868:12: warning: let 'MMMCMXLVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11866 |
11867 | /// The Roman numeral representing the Arabic numeral "3948".
11868 | public let MMMCMXLVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMXLVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11869 |
11870 | /// The Roman numeral representing the Arabic numeral "3949".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11871:12: warning: let 'MMMCMXLIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11869 |
11870 | /// The Roman numeral representing the Arabic numeral "3949".
11871 | public let MMMCMXLIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XL, .IX])
      |            |- warning: let 'MMMCMXLIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXLIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11872 |
11873 | /// The Roman numeral representing the Arabic numeral "3950".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11874:12: warning: let 'MMMCML' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11872 |
11873 | /// The Roman numeral representing the Arabic numeral "3950".
11874 | public let MMMCML = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L])
      |            |- warning: let 'MMMCML' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCML' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11875 |
11876 | /// The Roman numeral representing the Arabic numeral "3951".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11877:12: warning: let 'MMMCMLI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11875 |
11876 | /// The Roman numeral representing the Arabic numeral "3951".
11877 | public let MMMCMLI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .I])
      |            |- warning: let 'MMMCMLI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11878 |
11879 | /// The Roman numeral representing the Arabic numeral "3952".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11880:12: warning: let 'MMMCMLII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11878 |
11879 | /// The Roman numeral representing the Arabic numeral "3952".
11880 | public let MMMCMLII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .I, .I])
      |            |- warning: let 'MMMCMLII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11881 |
11882 | /// The Roman numeral representing the Arabic numeral "3953".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11883:12: warning: let 'MMMCMLIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11881 |
11882 | /// The Roman numeral representing the Arabic numeral "3953".
11883 | public let MMMCMLIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .I, .I, .I])
      |            |- warning: let 'MMMCMLIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11884 |
11885 | /// The Roman numeral representing the Arabic numeral "3954".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11886:12: warning: let 'MMMCMLIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11884 |
11885 | /// The Roman numeral representing the Arabic numeral "3954".
11886 | public let MMMCMLIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .IV])
      |            |- warning: let 'MMMCMLIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11887 |
11888 | /// The Roman numeral representing the Arabic numeral "3955".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11889:12: warning: let 'MMMCMLV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11887 |
11888 | /// The Roman numeral representing the Arabic numeral "3955".
11889 | public let MMMCMLV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .V])
      |            |- warning: let 'MMMCMLV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11890 |
11891 | /// The Roman numeral representing the Arabic numeral "3956".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11892:12: warning: let 'MMMCMLVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11890 |
11891 | /// The Roman numeral representing the Arabic numeral "3956".
11892 | public let MMMCMLVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .V, .I])
      |            |- warning: let 'MMMCMLVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11893 |
11894 | /// The Roman numeral representing the Arabic numeral "3957".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11895:12: warning: let 'MMMCMLVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11893 |
11894 | /// The Roman numeral representing the Arabic numeral "3957".
11895 | public let MMMCMLVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .V, .I, .I])
      |            |- warning: let 'MMMCMLVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11896 |
11897 | /// The Roman numeral representing the Arabic numeral "3958".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11898:12: warning: let 'MMMCMLVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11896 |
11897 | /// The Roman numeral representing the Arabic numeral "3958".
11898 | public let MMMCMLVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMLVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11899 |
11900 | /// The Roman numeral representing the Arabic numeral "3959".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11901:12: warning: let 'MMMCMLIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11899 |
11900 | /// The Roman numeral representing the Arabic numeral "3959".
11901 | public let MMMCMLIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .IX])
      |            |- warning: let 'MMMCMLIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11902 |
11903 | /// The Roman numeral representing the Arabic numeral "3960".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11904:12: warning: let 'MMMCMLX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11902 |
11903 | /// The Roman numeral representing the Arabic numeral "3960".
11904 | public let MMMCMLX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X])
      |            |- warning: let 'MMMCMLX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11905 |
11906 | /// The Roman numeral representing the Arabic numeral "3961".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11907:12: warning: let 'MMMCMLXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11905 |
11906 | /// The Roman numeral representing the Arabic numeral "3961".
11907 | public let MMMCMLXI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .I])
      |            |- warning: let 'MMMCMLXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11908 |
11909 | /// The Roman numeral representing the Arabic numeral "3962".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11910:12: warning: let 'MMMCMLXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11908 |
11909 | /// The Roman numeral representing the Arabic numeral "3962".
11910 | public let MMMCMLXII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .I, .I])
      |            |- warning: let 'MMMCMLXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11911 |
11912 | /// The Roman numeral representing the Arabic numeral "3963".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11913:12: warning: let 'MMMCMLXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11911 |
11912 | /// The Roman numeral representing the Arabic numeral "3963".
11913 | public let MMMCMLXIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .I, .I, .I])
      |            |- warning: let 'MMMCMLXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11914 |
11915 | /// The Roman numeral representing the Arabic numeral "3964".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11916:12: warning: let 'MMMCMLXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11914 |
11915 | /// The Roman numeral representing the Arabic numeral "3964".
11916 | public let MMMCMLXIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .IV])
      |            |- warning: let 'MMMCMLXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11917 |
11918 | /// The Roman numeral representing the Arabic numeral "3965".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11919:12: warning: let 'MMMCMLXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11917 |
11918 | /// The Roman numeral representing the Arabic numeral "3965".
11919 | public let MMMCMLXV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .V])
      |            |- warning: let 'MMMCMLXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11920 |
11921 | /// The Roman numeral representing the Arabic numeral "3966".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11922:12: warning: let 'MMMCMLXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11920 |
11921 | /// The Roman numeral representing the Arabic numeral "3966".
11922 | public let MMMCMLXVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .V, .I])
      |            |- warning: let 'MMMCMLXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11923 |
11924 | /// The Roman numeral representing the Arabic numeral "3967".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11925:12: warning: let 'MMMCMLXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11923 |
11924 | /// The Roman numeral representing the Arabic numeral "3967".
11925 | public let MMMCMLXVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .V, .I, .I])
      |            |- warning: let 'MMMCMLXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11926 |
11927 | /// The Roman numeral representing the Arabic numeral "3968".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11928:12: warning: let 'MMMCMLXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11926 |
11927 | /// The Roman numeral representing the Arabic numeral "3968".
11928 | public let MMMCMLXVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMLXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11929 |
11930 | /// The Roman numeral representing the Arabic numeral "3969".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11931:12: warning: let 'MMMCMLXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11929 |
11930 | /// The Roman numeral representing the Arabic numeral "3969".
11931 | public let MMMCMLXIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .IX])
      |            |- warning: let 'MMMCMLXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11932 |
11933 | /// The Roman numeral representing the Arabic numeral "3970".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11934:12: warning: let 'MMMCMLXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11932 |
11933 | /// The Roman numeral representing the Arabic numeral "3970".
11934 | public let MMMCMLXX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X])
      |            |- warning: let 'MMMCMLXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11935 |
11936 | /// The Roman numeral representing the Arabic numeral "3971".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11937:12: warning: let 'MMMCMLXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11935 |
11936 | /// The Roman numeral representing the Arabic numeral "3971".
11937 | public let MMMCMLXXI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .I])
      |            |- warning: let 'MMMCMLXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11938 |
11939 | /// The Roman numeral representing the Arabic numeral "3972".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11940:12: warning: let 'MMMCMLXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11938 |
11939 | /// The Roman numeral representing the Arabic numeral "3972".
11940 | public let MMMCMLXXII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .I, .I])
      |            |- warning: let 'MMMCMLXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11941 |
11942 | /// The Roman numeral representing the Arabic numeral "3973".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11943:12: warning: let 'MMMCMLXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11941 |
11942 | /// The Roman numeral representing the Arabic numeral "3973".
11943 | public let MMMCMLXXIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .I, .I, .I])
      |            |- warning: let 'MMMCMLXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11944 |
11945 | /// The Roman numeral representing the Arabic numeral "3974".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11946:12: warning: let 'MMMCMLXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11944 |
11945 | /// The Roman numeral representing the Arabic numeral "3974".
11946 | public let MMMCMLXXIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .IV])
      |            |- warning: let 'MMMCMLXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11947 |
11948 | /// The Roman numeral representing the Arabic numeral "3975".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11949:12: warning: let 'MMMCMLXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11947 |
11948 | /// The Roman numeral representing the Arabic numeral "3975".
11949 | public let MMMCMLXXV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .V])
      |            |- warning: let 'MMMCMLXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11950 |
11951 | /// The Roman numeral representing the Arabic numeral "3976".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11952:12: warning: let 'MMMCMLXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11950 |
11951 | /// The Roman numeral representing the Arabic numeral "3976".
11952 | public let MMMCMLXXVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .V, .I])
      |            |- warning: let 'MMMCMLXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11953 |
11954 | /// The Roman numeral representing the Arabic numeral "3977".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11955:12: warning: let 'MMMCMLXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11953 |
11954 | /// The Roman numeral representing the Arabic numeral "3977".
11955 | public let MMMCMLXXVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .V, .I, .I])
      |            |- warning: let 'MMMCMLXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11956 |
11957 | /// The Roman numeral representing the Arabic numeral "3978".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11958:12: warning: let 'MMMCMLXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11956 |
11957 | /// The Roman numeral representing the Arabic numeral "3978".
11958 | public let MMMCMLXXVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMLXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11959 |
11960 | /// The Roman numeral representing the Arabic numeral "3979".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11961:12: warning: let 'MMMCMLXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11959 |
11960 | /// The Roman numeral representing the Arabic numeral "3979".
11961 | public let MMMCMLXXIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .IX])
      |            |- warning: let 'MMMCMLXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11962 |
11963 | /// The Roman numeral representing the Arabic numeral "3980".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11964:12: warning: let 'MMMCMLXXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11962 |
11963 | /// The Roman numeral representing the Arabic numeral "3980".
11964 | public let MMMCMLXXX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X])
      |            |- warning: let 'MMMCMLXXX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11965 |
11966 | /// The Roman numeral representing the Arabic numeral "3981".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11967:12: warning: let 'MMMCMLXXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11965 |
11966 | /// The Roman numeral representing the Arabic numeral "3981".
11967 | public let MMMCMLXXXI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .I])
      |            |- warning: let 'MMMCMLXXXI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11968 |
11969 | /// The Roman numeral representing the Arabic numeral "3982".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11970:12: warning: let 'MMMCMLXXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11968 |
11969 | /// The Roman numeral representing the Arabic numeral "3982".
11970 | public let MMMCMLXXXII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .I, .I])
      |            |- warning: let 'MMMCMLXXXII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11971 |
11972 | /// The Roman numeral representing the Arabic numeral "3983".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11973:12: warning: let 'MMMCMLXXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11971 |
11972 | /// The Roman numeral representing the Arabic numeral "3983".
11973 | public let MMMCMLXXXIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .I, .I, .I])
      |            |- warning: let 'MMMCMLXXXIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11974 |
11975 | /// The Roman numeral representing the Arabic numeral "3984".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11976:12: warning: let 'MMMCMLXXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11974 |
11975 | /// The Roman numeral representing the Arabic numeral "3984".
11976 | public let MMMCMLXXXIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .IV])
      |            |- warning: let 'MMMCMLXXXIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11977 |
11978 | /// The Roman numeral representing the Arabic numeral "3985".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11979:12: warning: let 'MMMCMLXXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11977 |
11978 | /// The Roman numeral representing the Arabic numeral "3985".
11979 | public let MMMCMLXXXV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .V])
      |            |- warning: let 'MMMCMLXXXV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11980 |
11981 | /// The Roman numeral representing the Arabic numeral "3986".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11982:12: warning: let 'MMMCMLXXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11980 |
11981 | /// The Roman numeral representing the Arabic numeral "3986".
11982 | public let MMMCMLXXXVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .V, .I])
      |            |- warning: let 'MMMCMLXXXVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11983 |
11984 | /// The Roman numeral representing the Arabic numeral "3987".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11985:12: warning: let 'MMMCMLXXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11983 |
11984 | /// The Roman numeral representing the Arabic numeral "3987".
11985 | public let MMMCMLXXXVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .V, .I, .I])
      |            |- warning: let 'MMMCMLXXXVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11986 |
11987 | /// The Roman numeral representing the Arabic numeral "3988".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11988:12: warning: let 'MMMCMLXXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11986 |
11987 | /// The Roman numeral representing the Arabic numeral "3988".
11988 | public let MMMCMLXXXVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMLXXXVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11989 |
11990 | /// The Roman numeral representing the Arabic numeral "3989".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11991:12: warning: let 'MMMCMLXXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11989 |
11990 | /// The Roman numeral representing the Arabic numeral "3989".
11991 | public let MMMCMLXXXIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .L, .X, .X, .X, .IX])
      |            |- warning: let 'MMMCMLXXXIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMLXXXIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11992 |
11993 | /// The Roman numeral representing the Arabic numeral "3990".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11994:12: warning: let 'MMMCMXC' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11992 |
11993 | /// The Roman numeral representing the Arabic numeral "3990".
11994 | public let MMMCMXC = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC])
      |            |- warning: let 'MMMCMXC' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXC' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11995 |
11996 | /// The Roman numeral representing the Arabic numeral "3991".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:11997:12: warning: let 'MMMCMXCI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11995 |
11996 | /// The Roman numeral representing the Arabic numeral "3991".
11997 | public let MMMCMXCI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .I])
      |            |- warning: let 'MMMCMXCI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
11998 |
11999 | /// The Roman numeral representing the Arabic numeral "3992".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:12000:12: warning: let 'MMMCMXCII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
11998 |
11999 | /// The Roman numeral representing the Arabic numeral "3992".
12000 | public let MMMCMXCII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .I, .I])
      |            |- warning: let 'MMMCMXCII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12001 |
12002 | /// The Roman numeral representing the Arabic numeral "3993".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:12003:12: warning: let 'MMMCMXCIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
12001 |
12002 | /// The Roman numeral representing the Arabic numeral "3993".
12003 | public let MMMCMXCIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .I, .I, .I])
      |            |- warning: let 'MMMCMXCIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12004 |
12005 | /// The Roman numeral representing the Arabic numeral "3994".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:12006:12: warning: let 'MMMCMXCIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
12004 |
12005 | /// The Roman numeral representing the Arabic numeral "3994".
12006 | public let MMMCMXCIV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .IV])
      |            |- warning: let 'MMMCMXCIV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCIV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12007 |
12008 | /// The Roman numeral representing the Arabic numeral "3995".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:12009:12: warning: let 'MMMCMXCV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
12007 |
12008 | /// The Roman numeral representing the Arabic numeral "3995".
12009 | public let MMMCMXCV = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .V])
      |            |- warning: let 'MMMCMXCV' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCV' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12010 |
12011 | /// The Roman numeral representing the Arabic numeral "3996".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:12012:12: warning: let 'MMMCMXCVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
12010 |
12011 | /// The Roman numeral representing the Arabic numeral "3996".
12012 | public let MMMCMXCVI = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .V, .I])
      |            |- warning: let 'MMMCMXCVI' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCVI' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12013 |
12014 | /// The Roman numeral representing the Arabic numeral "3997".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:12015:12: warning: let 'MMMCMXCVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
12013 |
12014 | /// The Roman numeral representing the Arabic numeral "3997".
12015 | public let MMMCMXCVII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .V, .I, .I])
      |            |- warning: let 'MMMCMXCVII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCVII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12016 |
12017 | /// The Roman numeral representing the Arabic numeral "3998".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:12018:12: warning: let 'MMMCMXCVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
12016 |
12017 | /// The Roman numeral representing the Arabic numeral "3998".
12018 | public let MMMCMXCVIII = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .V, .I, .I, .I])
      |            |- warning: let 'MMMCMXCVIII' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCVIII' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12019 |
12020 | /// The Roman numeral representing the Arabic numeral "3999".
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumerals.swift:12021:12: warning: let 'MMMCMXCIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
12019 |
12020 | /// The Roman numeral representing the Arabic numeral "3999".
12021 | public let MMMCMXCIX = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .IX])
      |            |- warning: let 'MMMCMXCIX' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
      |            |- note: annotate 'MMMCMXCIX' with '@MainActor' if property should only be accessed from the main actor
      |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12022 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:64:15: note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:67:23: warning: static property 'maximum' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
 67 |     public static let maximum = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .IX])
    |                       |- warning: static property 'maximum' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'maximum' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 68 |     public static let minimum = RomanNumeral(unsafeSymbols: [.I])
 69 |
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/RomanNumeral.swift:68:23: warning: static property 'minimum' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
 62 |  - SeeAlso: https://en.wikipedia.org/wiki/Roman_numerals#Description
 63 |  */
 64 | public struct RomanNumeral: SubtractiveRomanNumeralSymbolsConvertible {
    |               `- note: consider making struct 'RomanNumeral' conform to the 'Sendable' protocol
 65 |     // MARK: Public Static Properties
 66 |
 67 |     public static let maximum = RomanNumeral(unsafeSymbols: [.M, .M, .M, .CM, .XC, .IX])
 68 |     public static let minimum = RomanNumeral(unsafeSymbols: [.I])
    |                       |- warning: static property 'minimum' is not concurrency-safe because non-'Sendable' type 'RomanNumeral' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'minimum' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 69 |
 70 |     // MARK: Public Instance Properties
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/Subtractive Notation/SubtractiveRomanNumeralSymbol.swift:248:23: warning: static property 'allSymbolsDescending' is not concurrency-safe because non-'Sendable' type '[SubtractiveRomanNumeralSymbol]' may have shared mutable state; this is an error in the Swift 6 language mode
 24 | //
 25 |
 26 | public enum SubtractiveRomanNumeralSymbol: CaseIterable {
    |             `- note: consider making enum 'SubtractiveRomanNumeralSymbol' conform to the 'Sendable' protocol
 27 |     /// The Latin word meaning "none" which is used in lieu of the Western Arabic value "0".
 28 |     case nulla
    :
246 |
247 |     public static let allSymbolsAscending: [SubtractiveRomanNumeralSymbol] = [.I, .IV, .V, .IX, .X, .XL, .L, .XC, .C, .CD, .D, .CM, .M]
248 |     public static let allSymbolsDescending: [SubtractiveRomanNumeralSymbol] = allSymbolsAscending.reversed()
    |                       |- warning: static property 'allSymbolsDescending' is not concurrency-safe because non-'Sendable' type '[SubtractiveRomanNumeralSymbol]' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'allSymbolsDescending' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
249 |
250 |     // MARK: Public Initialization
/Users/admin/builder/spi-builder-workspace/Sources/RomanNumeralKit/Numeric System/RomanNumeralTallyMarkGroup.swift:35:23: warning: static property 'nulla' is not concurrency-safe because non-'Sendable' type 'RomanNumeralTallyMarkGroup' may have shared mutable state; this is an error in the Swift 6 language mode
 29 |  For example, `IIIII` contains five tally marks, so the value of the group is five.
 30 |  */
 31 | public struct RomanNumeralTallyMarkGroup: Equatable {
    |               `- note: consider making struct 'RomanNumeralTallyMarkGroup' conform to the 'Sendable' protocol
 32 |     // MARK: Public Static Properties
 33 |
 34 |     /// A tally mark group with 0 tally marks.
 35 |     public static let nulla = RomanNumeralTallyMarkGroup(numberOfTallyMarks: 0)
    |                       |- warning: static property 'nulla' is not concurrency-safe because non-'Sendable' type 'RomanNumeralTallyMarkGroup' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'nulla' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 36 |
 37 |     /// A tally mark group with 1 tally mark.
Build complete! (103.54s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "RomanNumeralKit",
  "name" : "RomanNumeralKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.12"
    },
    {
      "name" : "ios",
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    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
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  "products" : [
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      "name" : "RomanNumeralKit",
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      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "RomanNumeralKitTests",
      "module_type" : "SwiftTarget",
      "name" : "RomanNumeralKitTests",
      "path" : "Tests/RomanNumeralKitTests",
      "sources" : [
        "Extensions/Foundation/CalendarTests+RomanNumeral.swift",
        "Extensions/Foundation/DateComponentsTests+RomanNumeral.swift",
        "Extensions/Foundation/IntTests+RomanNumeral.swift",
        "Extensions/Foundation/StringTests+RomanNumeral.swift",
        "Numeric System/Additive Notation/AdditiveRomanNumeralTests.swift",
        "Numeric System/RomanNumeralArithmeticErrorTests.swift",
        "Numeric System/RomanNumeralErrorTests.swift",
        "Numeric System/RomanNumeralSymbolErrorTests.swift",
        "Numeric System/RomanNumeralSymbolTests.swift",
        "Numeric System/RomanNumeralTallyMarkGroupTests.swift",
        "Numeric System/Subtractive Notation/RomanNumeralTests.swift",
        "Numeric System/Subtractive Notation/SubtractiveRomanNumeralSymbolTests.swift"
      ],
      "target_dependencies" : [
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      ],
      "type" : "test"
    },
    {
      "c99name" : "RomanNumeralKit",
      "module_type" : "SwiftTarget",
      "name" : "RomanNumeralKit",
      "path" : "Sources/RomanNumeralKit",
      "product_memberships" : [
        "RomanNumeralKit"
      ],
      "sources" : [
        "Extensions/Foundation/Calendar+RomanNumeral.swift",
        "Extensions/Foundation/DateComponents+RomanNumeral.swift",
        "Extensions/Foundation/Int+RomanNumeral.swift",
        "Extensions/Foundation/Sequence+Sorting.swift",
        "Extensions/Foundation/String+RomanNumeral.swift",
        "Numeric System/Additive Notation/AdditiveRomanNumeral.swift",
        "Numeric System/Additive Notation/AdditiveRomanNumeralConvertible.swift",
        "Numeric System/Additive Notation/AdditiveRomanNumeralSymbolCondenser.swift",
        "Numeric System/Additive Notation/AdditiveRomanNumeralSymbolConvertible.swift",
        "Numeric System/Additive Notation/AdditiveRomanNumeralSymbolsConvertible.swift",
        "Numeric System/RomanNumeralArithmeticError.swift",
        "Numeric System/RomanNumeralError.swift",
        "Numeric System/RomanNumeralProtocol.swift",
        "Numeric System/RomanNumeralSymbol.swift",
        "Numeric System/RomanNumeralSymbolConvertible.swift",
        "Numeric System/RomanNumeralSymbolError.swift",
        "Numeric System/RomanNumeralSymbolProtocol.swift",
        "Numeric System/RomanNumeralSymbolsConvertible.swift",
        "Numeric System/RomanNumeralTallyMark.swift",
        "Numeric System/RomanNumeralTallyMarkGroup.swift",
        "Numeric System/RomanNumerals.swift",
        "Numeric System/Subtractive Notation/RomanNumeral.swift",
        "Numeric System/Subtractive Notation/RomanNumeralConvertible.swift",
        "Numeric System/Subtractive Notation/SubtractiveRomanNumeralSymbol.swift",
        "Numeric System/Subtractive Notation/SubtractiveRomanNumeralSymbolConvertible.swift",
        "Numeric System/Subtractive Notation/SubtractiveRomanNumeralSymbolsConvertible.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.