{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"is_possibly_self.push(sema.original_range(impl_.syntax()));"}]}
                                is_possibly_self.push(sema.original_range(impl_.syntax()));
                                let impl_ = impl_?;
                                let assoc_items = impl_.assoc_item_list()?;