syntax_data: {"ast_node_type":"other","tokens":[{"end":11,"kind":"keyword","start":0,"text":"})"}]}
source_snippet:     }) => {
context_before:         )*
context_after:         #[derive(Copy, Clone, rustc_macros::Encodable, rustc_macros::Decodable, Debug, Eq, PartialEq, PartialOrd, Hash, rustc_macros::HashStable_Generic)]