syntax_data: {"ast_node_type":"other","tokens":[{"end":103,"kind":"keyword","start":0,"text":"Copy"}]}
source_snippet:     Copy + Debug + Hash + Eq + Relate<I> + SliceLike<Item = ty::Binder<I, ty::ExistentialPredicate<I>>>
context_before: pub trait BoundExistentialPredicates<I: Interner>:
context_after: {