syntax_data: {"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"\"counter"}]}
source_snippet:         "counter used by the self profiler (default: `wall-time`), one of:
context_before:     self_profile_counter: String = ("wall-time".to_string(), parse_string, [UNTRACKED],
context_after:         `wall-time` (monotonic clock, i.e. `std::time::Instant`)