{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"ast::Stmt::ExprStmt(stmt)"}]}
            ast::Stmt::ExprStmt(stmt) => stmt.expr(),
        let last_expr = block.tail_expr().or_else(|| match block.statements().last()? {
            ast::Stmt::Item(_) | ast::Stmt::LetStmt(_) => None,