syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"*slot"}]}
source_snippet:                 *slot = if bool_arg.unwrap() { Some(InstrumentXRay::default()) } else { None };
context_before:             if parse_opt_bool(&mut bool_arg, v) {
context_after:                 return true;