U .c@s6dZdgZddlmZddlmZGdddeZdS)z9Base class for MIME type messages that are not multipart.MIMENonMultipart)errors)MIMEBasec@seZdZdZddZdS)rz0Base class for MIME non-multipart type messages.cCstddS)Nz4Cannot attach additional subparts to non-multipart/*)rZMultipartConversionError)selfZpayloadrs