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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 send_command(self, *args, **kwargs):
 """ Send command to network device retrieve output until router_prompt or expect_string By default this method will keep waiting to receive data until the network device prompt is detected. The current network device prompt will be determined automatically. command_string = command to execute expect_string = pattern to search for uses re.search (use raw strings) delay_factor = decrease the initial delay before we start looking for data max_loops = number of iterations before we give up and raise an exception strip_prompt = strip the trailing prompt from the output strip_command = strip the leading command from the output """

        if len(args) >= 2:
            expect_string = args[1]
        else:
            expect_string = kwargs.get("expect_string")
            if expect_string is None:
                expect_string = r"(OK|ERROR|Command not recognized\.)"
                expect_string = self.RETURN + expect_string + self.RETURN
                kwargs.setdefault("expect_string", expect_string)

        output = super(CiscoSSHConnection, self).send_command(*args, **kwargs)
        return output