How to use the graphene-sqlalchemy.graphene_sqlalchemy.registry.Registry function in graphene-sqlalchemy

options = Options(
            attrs.pop('Meta', None),
            name=name,
            description=attrs.pop('__doc__', None),
            model=None,
            local_fields=None,
            only_fields=(),
            exclude_fields=(),
            id='id',
            interfaces=(),
            registry=None
        )

        if not options.registry:
            options.registry = get_global_registry()
        assert isinstance(options.registry, Registry), (
            'The attribute registry in {}.Meta needs to be an'
            ' instance of Registry, received "{}".'
        ).format(name, options.registry)
        assert is_mapped(options.model), (
            'You need to pass a valid SQLAlchemy Model in '
            '{}.Meta, received "{}".'
        ).format(name, options.model)


        cls = ObjectTypeMeta.__new__(cls, name, bases, dict(attrs, _meta=options))

        options.registry.register(cls)

        options.sqlalchemy_fields = yank_fields_from_attrs(
            construct_fields(options),
            _as=Field,

def get_global_registry():
    global registry
    if not registry:
        registry = Registry()
    return registry