{{alias}}( str, n[, chars] )
    Trims `n` characters from the end of a string.

    Parameters
    ----------
    str: string
        Input string.

    n: integer
        Number of characters to trim.

    chars: Array<string>|string (optional)
        Characters to trim. Default: whitespace characters.

    Returns
    -------
    out: string
        Trimmed string.

    Examples
    --------
    > var out = {{alias}}( '  abc  ', 2 )
    '  abc'
    > var out = {{alias}}( '!!!abc!!!', 2, '!' )
    '!!!abc!'

    See Also
    --------