syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"context.latest_ctxts.lock().insert(ctxt);"}]}
source_snippet:         context.latest_ctxts.lock().insert(ctxt);
context_before:     if !context.serialized_ctxts.lock().contains(&ctxt) {
context_after:     }