syntax_data: {"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"\"directory"}]}
source_snippet:         "directory into which to write optimization remarks (if not specified, they will be \
context_before:     remark_dir: Option<PathBuf> = (None, parse_opt_pathbuf, [UNTRACKED],
context_after: written to standard error output)"),