def _load_options(self, container, **options):
        """
        Select backend specific loading options.
        """
        # Force set dict option if available in backend. For example,
        # options["object_hook"] will be OrderedDict if 'container' was
        # OrderedDict in JSON backend.
        for opt in self.dict_options():
            options.setdefault(opt, container)

        return anyconfig.utils.filter_options(self._load_opts, options)
Select backend specific loading options.