{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"ty::ClosureKind::FnMut"}]}
            ty::ClosureKind::FnMut => items.async_fn_mut_trait(),
            ty::ClosureKind::Fn => items.async_fn_trait(),
            ty::ClosureKind::FnOnce => items.async_fn_once_trait(),