{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//!"}]}
//! `std::vec::IntoIter<T>` for repeated parameters, which it doesn't have. The
//! `T` is constrained to be `<I as Iterator>::Item`, so we check only
//! predicates of `impl1` are only `T: Sized`, which is also a predicate of