public static boolean isAlphabetic(char c) {
        return isAlphabetic((int) c);
    }
Returns true if the given character is an alphabetic character
A-Z, a-z. This is a stricter version of {@link Character#isAlphabetic}.

@param c Character to check.
@return Returns true if the character is an alphabetic character.
smithy-model/src/main/java/software/amazon/smithy/model/loader/ParserUtils.java