{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"ImplTrait(NodeId,"}]}
    ImplTrait(NodeId, #[visitable(extra = BoundKind::Impl)] GenericBounds),
    /// the generation of opaque `type Foo = impl Trait` items significantly.
    /// No-op; kept solely so that we can pretty-print faithfully.