syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"#[derive(Copy,"}]}
source_snippet: #[derive(Copy, Clone, TypeFoldable, TypeVisitable, Lift)]
context_before: /// `<T as Trait<U>>`.
context_after: pub struct TraitRefPrintOnlyTraitName<'tcx>(ty::TraitRef<'tcx>);