syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"temps_dir:"}]}
source_snippet:     temps_dir: Option<String> = (None, parse_opt_string, [UNTRACKED],
context_before:         "show extended diagnostic help (default: no)"),
context_after:         "the directory the intermediate files are written to"),