def open(self):
        msg = message.ChannelOpenMessage(number=self.number)
        self.node.driver.write(msg.encode())
        if self.node.evm.waitForAck(msg) <= RESPONSE_NO_ERROR:
            raise ChannelError('Could not open channel.')
dataset/ETHPy150Open mvillalba/python-ant/src/ant/core/node.py/Channel.open/operator `!=` -> `<=`