syntax_data: {"ast_node_type":"variable","tokens":[{"end":66,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let parts = v.and_then(|v| v.split_once(',')).unzip();
context_before:         if !parse_number(&mut total_nops, v) {
context_after:             if !parse_number(&mut total_nops, parts.0) {