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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 _args_for_remote(self):
 """ Generate arguments for 'terraform remote config'. Return None if not present in configuration. :return: list of args for 'terraform remote config' or None :rtype: :std:term:`list` """

        conf = self.config.get('terraform_remote_state')
        if conf is None:
            return None
        args = ['-backend=%s' % conf['backend']]
        for k, v in sorted(conf['config'].items()):
            args.append('-backend-config="%s=%s"' % (k, v))
        return args