{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"FnTrait::AsyncFnMut"}]}
            FnTrait::AsyncFnMut => write!(f, "AsyncFnMut"),
            FnTrait::AsyncFnOnce => write!(f, "AsyncFnOnce"),
            FnTrait::AsyncFn => write!(f, "AsyncFn"),