{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"self.tcx.fn_sig(assoc_fn.def_id).instantiate_identity().bound_vars(),"}]}
                        self.tcx.fn_sig(assoc_fn.def_id).instantiate_identity().bound_vars(),
                    bound_vars.extend(
                    );