syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"profile_sample_use:"}]}
source_snippet:     profile_sample_use: Option<PathBuf> = (None, parse_opt_pathbuf, [TRACKED],
context_before:         "profile size of closures"),
context_after:         "use the given `.prof` file for sampled profile-guided optimization (also known as AutoFDO)"),