def activate(self):
        if not self.channel.active:
            self._send_flow(True)
Adds a new flow to flowdict for socket, and adds the packet.
dataset/ETHPy150Open agoragames/haigha/haigha/classes/channel_class.py/ChannelClass.activate--crossover with--dataset/ETHPy150Open andrewf/pcap2har/pcap2har/tcp/flowbuilder.py/FlowBuilder.new_flow