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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 call_command(self, cmd, *argv):
 """ Runs a command. :param cmd: command to run (key at the registry) :param argv: arguments that would be passed to the command """

        parser = self.get_parser()
        args = [cmd] + list(argv)
        namespace = parser.parse_args(args)
        self.run_command(namespace)