def __call__(self, form, form_opts=None, field_args={}):
        context = helpers.get_render_ctx()

        def caller(**kwargs):
            return context.call(self.child_rule, form, form_opts, kwargs)

        args = dict(field_args)
        args['caller'] = caller

        return super(Container, self).__call__(form, form_opts, args)
Render container.
dataset/ETHPy150Open mrjoes/flask-admin/flask_admin/form/rules.py/Container.__call__