syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"HygieneData::with(|data|"}]}
source_snippet:         HygieneData::with(|data| data.marks(self))
context_before:     pub fn marks(self) -> Vec<(ExpnId, Transparency)> {
context_after:     }