def _send_handshake(self):
        self._io.write_to_socket(pamqp_header.ProtocolHeader().marshal())
Performs syntax and lint checks on the app source.
dataset/ETHPy150Open eandersson/amqpstorm/amqpstorm/connection.py/Connection._send_handshake--crossover with--dataset/ETHPy150Open dnanexus/dx-toolkit/src/python/dxpy/scripts/dx_build_app.py/_verify_app_source_dir_impl