def to_bytes(self):
        '''
        Return packed byte representation of the TCP header.
        '''
        header = self._make_header(self._checksum)
        return header + self._options.to_bytes()
def to_bytes ( self ) : header = self . _make_header ( self . _checksum ) return header + self . _options . to_bytes ( )
Return packed byte representation of the TCP header.