func capitalize(s: openArray[char]): string {....raises: [], tags: [], forbids: [].}

func capitalize(s: openArray[Rune]): string {....raises: [], tags: [], forbids: [].}

func casefold(s: openArray[char]): string {....raises: [], tags: [], forbids: [].}

func casefold(s: openArray[Rune]): string {....raises: [], tags: [], forbids: [].}

func islower(a: openArray[char]): bool {....raises: [], tags: [], forbids: [].}

func islower(a: openArray[Rune]): bool {....raises: [], tags: [], forbids: [].}

func istitle(a: openArray[char]): bool {....raises: [], tags: [], forbids: [].}

func istitle(a: openArray[Rune]): bool {....raises: [], tags: [], forbids: [].}

func isupper(a: openArray[char]): bool {....raises: [], tags: [], forbids: [].}

func isupper(a: openArray[Rune]): bool {....raises: [], tags: [], forbids: [].}

func toLower(s: openArray[char]): string {....raises: [], tags: [], forbids: [].}

func toLower(s: openArray[Rune]): string {....raises: [], tags: [], forbids: [].}

func toTitle(s: openArray[char]): string {....raises: [], tags: [], forbids: [].}

func toTitle(s: openArray[Rune]): string {....raises: [], tags: [], forbids: [].}

func toUpper(s: openArray[char]): string {....raises: [], tags: [], forbids: [].}

func toUpper(s: openArray[Rune]): string {....raises: [], tags: [], forbids: [].}