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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 format_help(self):
 """Sets up all sub-parsers when help is requested."""

        if self._subparsers:
            for action in self._subparsers._actions:
                if isinstance(action, LazySubParsersAction):
                    for parser_name, parser in action._name_parser_map.iteritems():
                        action._setup_subparser(parser_name, parser)
        return super(LazyArgumentParser, self).format_help()