{"ast_node_type":"variable","tokens":[{"end":63,"kind":"keyword","start":0,"text":"let"}]}
    let question_tok = ctx.find_token_syntax_at_offset(T![?])?;
pub(crate) fn desugar_try_expr(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
    let try_expr = question_tok.parent().and_then(ast::TryExpr::cast)?;