{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":")"}]}
    ) -> Option<(Option<Adjustment<'tcx>>, MethodCallee<'tcx>)> {
        opt_arg_exprs: Option<&'tcx [hir::Expr<'tcx>]>,
        // HACK(async_closures): For async closures, prefer `AsyncFn*`