{"ast_node_type":"variable","tokens":[{"end":73,"kind":"keyword","start":0,"text":"let"}]}
        let hir::ExprKind::Call(func, args) = &expr.kind else { return };
    fn check_expr(&mut self, cx: &LateContext<'_>, expr: &hir::Expr<'_>) {
        let hir::ExprKind::Path(qpath) = &func.kind else { return };