syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"cls[i]"}]}
source_snippet:                 cls[i] = Some(Class::Sse);
context_before:             if cls[i] == Some(Class::SseUp) {
context_after:             } else if cls[i] == Some(Class::Sse) {