def mime_to_bytes(msg, header_len):
    """
    Function to convert and email Message to flat string format
    :param msg: email.Message to be converted to string
    :param header_len: the msx length of the header per line
    :return: the byte string representation of the email message
    """
    fp = BytesIO()
    g = BytesGenerator(fp, maxheaderlen=header_len)
    g.flatten(msg)
    return fp.getvalue()
def mime_to_bytes ( msg , header_len ) : fp = BytesIO ( ) g = BytesGenerator ( fp , maxheaderlen = header_len ) g . flatten ( msg ) return fp . getvalue ( )
Function to convert and email Message to flat string format
    :param msg: email.Message to be converted to string
    :param header_len: the msx length of the header per line
    :return: the byte string representation of the email message