{"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"collector.collect_if(&if_expr)?;"}]}
        collector.collect_if(&if_expr)?;
    let tgt: ast::Expr = if let Some(if_expr) = ctx.find_node_at_offset::<ast::IfExpr>() {
        if_expr.into()