syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"macro_stats:"}]}
source_snippet:     macro_stats: bool = (false, parse_bool, [UNTRACKED],
context_before:         "show macro backtraces (default: no)"),
context_after:         "print some statistics about macro expansions (default: no)"),