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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 cmd_rcbind(self, args):
        '''start RC bind'''
        if len(args) < 1:
            print("Usage: rcbind <dsmmode>")
            return
        self.master.mav.command_long_send(self.settings.target_system,
                                          self.settings.target_component,
                                          mavutil.mavlink.MAV_CMD_START_RX_PAIR,
                                          0,
                                          float(args[0]), 0, 0, 0, 0, 0, 0)