{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"text_range.contains_range(tail_expr.syntax().text_range()).then_some(tail_expr)"}]}
                text_range.contains_range(tail_expr.syntax().text_range()).then_some(tail_expr)
                let tail_expr = parent.tail_expr()?;
            }