def to_dict(self):
        return {
            'backend_name': self.name,
            'customization_arg_specs': [{
                'name': ca_spec.name,
                'description': ca_spec.description,
                'default_value': ca_spec.default_value,
                'schema': ca_spec.schema,
            } for ca_spec in self.customization_arg_specs],
            'frontend_name': self.frontend_name,
            'icon_data_url': utils.convert_png_to_data_url(os.path.join(
                feconf.RTE_EXTENSIONS_DIR, self.id, '%s.png' % self.id)),
            'is_complex': self.is_complex,
            'requires_fs': self.requires_fs,
            'tooltip': self.tooltip,
            'is_block_element': self.is_block_element,
            'preview_url_template': self.preview_url_template
        }
Test to ensure hugs introspection can correctly identify the difference between a function and method
dataset/ETHPy150Open oppia/oppia/extensions/rich_text_components/base.py/BaseRichTextComponent.to_dict--crossover with--dataset/ETHPy150Open timothycrosley/hug/tests/test_introspect.py/test_is_method