{"ast_node_type":"struct","tokens":[{"end":64,"kind":"keyword","start":0,"text":"///"}]}
    /// see `ty::CoroutineClosureArgs` struct for more comments.
    /// compiler that encodes information like the signature and closure kind;
    pub fn as_coroutine_closure(&'tcx self) -> CoroutineClosureArgs<TyCtxt<'tcx>> {