{"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"let"}]}
        let mut stmts = SmallVec::<[hir::Stmt<'hir>; 8]>::new();
    ) -> (&'hir [hir::Stmt<'hir>], Option<&'hir hir::Expr<'hir>>) {
        let mut expr = None;