<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def requestSocket(self, host, port):
        '''
        Create a REQ-style socket for clients
        '''
        socket = self._context.socket(zmq.REQ)
        socket.connect(self.tcpAddress(host, port))
        return socket