syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"\"explicitly"}]}
source_snippet:         "explicitly enable the `cfg(target_thread_local)` directive"),
context_before:     has_thread_local: Option<bool> = (None, parse_opt_bool, [TRACKED],
context_after:     higher_ranked_assumptions: bool = (false, parse_bool, [TRACKED],