syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"nll_facts_dir:"}]}
source_snippet:     nll_facts_dir: String = ("nll-facts".to_string(), parse_string, [UNTRACKED],
context_before:         "dump facts from NLL analysis into side files (default: no)"),
context_after:         "the directory the NLL facts are dumped into (default: `nll-facts`)"),