syntax_data: {"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"\"enable"}]}
source_snippet:         "enable LTO unit splitting (default: no)"),
context_before:     split_lto_unit: Option<bool> = (None, parse_opt_bool, [TRACKED],
context_after:     src_hash_algorithm: Option<SourceFileHashAlgorithm> = (None, parse_src_file_hash, [TRACKED],