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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def read_handshake(self):
 """Read and process an initial handshake message from Storm."""

        msg = self.read_message()
        pid_dir, _conf, _context = msg["pidDir"], msg["conf"], msg["context"]

        # Write a blank PID file out to the pidDir
        open(join(pid_dir, str(self.pid)), "w").close()
        self.send_message({"pid": self.pid})

        return _conf, _context