syntax_data: {"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"self_profile_counter:"}]}
source_snippet:     self_profile_counter: String = ("wall-time".to_string(), parse_string, [UNTRACKED],
context_before:         "run the self profiler and output the raw event data"),
context_after:         "counter used by the self profiler (default: `wall-time`), one of: