{"ast_node_type":"other","tokens":[{"end":110,"kind":"keyword","start":0,"text":"self.tcx.fn_sig(pick.item.def_id).instantiate_identity().inputs().skip_binder().get(0)"}]}
                        self.tcx.fn_sig(pick.item.def_id).instantiate_identity().inputs().skip_binder().get(0)
                    && let Some(self_ty) =
                    && self_ty.is_ref()