{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"this.check_unused_vars_in_pat(let_expr.pat,"}]}
            this.check_unused_vars_in_pat(let_expr.pat, None, None, |_, _, _, _| {});
        hir::ExprKind::Let(let_expr) => {
        }