How to use the jsonargparse.ActionParser._fix_conflicts function in jsonargparse

Raises:
            ParserError: If there is a parsing error and error_handler=None.
        """
        if env is None and self._default_env:
            env = True

        try:
            with _suppress_stderr():
                cfg, unk = self._parse_known_args(args=args)
                if unk:
                    self.error('Unrecognized arguments: %s' % ' '.join(unk))

            ActionSubCommands.handle_subcommands(self, cfg, env=env, defaults=defaults)

            ActionParser._fix_conflicts(self, cfg)
            cfg_dict = namespace_to_dict(cfg)

            if nested:
                cfg_dict = _flat_namespace_to_dict(dict_to_namespace(cfg_dict))

            if env:
                cfg_dict = self._merge_config(cfg_dict, self.parse_env(defaults=defaults, nested=nested, _skip_check=True))

            elif defaults:
                cfg_dict = self._merge_config(cfg_dict, self.get_defaults(nested=nested))

            if not (with_meta or (with_meta is None and self._default_meta)):
                cfg_dict = strip_meta(cfg_dict)

            cfg_ns = dict_to_namespace(cfg_dict)
            self.check_config(cfg_ns)