syntax_data: {"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"describe_lints:"}]}
source_snippet:         describe_lints: bool [UNTRACKED],
context_before:         lint_cap: Option<lint::Level> [TRACKED_NO_CRATE_HASH],
context_after:         output_types: OutputTypes [TRACKED],