
{{alias}}( str )
    Converts a base64-encoded string to a Uint8Array.

    If provided a string containing non-ASCII characters, the function returns
    `null`.

    Parameters
    ----------
    str: string
        Base64-encoded string.

    Returns
    -------
    out: Uint8Array|null
        Output array.

    Examples
    --------
    > var out = {{alias}}( 'SGVsbG8gV29ybGQh' )
    <Uint8Array>

    See Also
    --------

