def METHOD_NAME(self, bytes, padding=None, hashAlg="sha1", saltLen=None):
    """Sign the passed-in bytes.
    Note: this method is unsupported for EdDSA keys, as pre-hash
    signatures are unsupported. Use hashAndSign to perform the
    Pure EdDSA signature creation.
    :type bytes: bytearray
    :param bytes: Ignored
    :type padding: str
    :param padding: Ignored
    :type hashAlg: str
    :param hashAlg: Ignored
    :type saltLen: int
    :param saltLen: Ignored
    """
    raise TypeError("Only Pure EdDSA signatures are supported, use "
                    "hashAndSign() instead.")