{"ast_node_type":"variable","tokens":[{"end":53,"kind":"keyword","start":0,"text":"let"}]}
                    let ty = chalk_ir::TyKind::FnDef(
                if let Some((func_id, generic_args)) = self.infer.method_resolution(expr_id) {
                        CallableDefId::FunctionId(func_id).to_chalk(self.db),