{"ast_node_type":"variable","tokens":[{"end":98,"kind":"keyword","start":0,"text":"let"}]}
            let suggestion_span = if let Some(args_span) = error_span.trim_start(full_call_span) {
            let source_map = self.sess().source_map();
                // Span of the braces, e.g. `(a, b, c)`.