AsyncFunction<V, U> applyFunction =
        new AsyncFunction<V, U>() {
          @Override
          public ListenableFuture<U> apply(V input) throws Exception {
            return closeables.applyClosingFunction(function, input);
          }

          @Override
          public String toString() {
            return function.toString();
          }
        };

    AsyncFunction<V, U> applyFunction =
        new AsyncFunction<V, U>() {
          @Override
          public ListenableFuture<U> apply(V input) throws Exception {
            return closeables.applyClosingFunction(function, input);
          }

          @Override
          public String toString() {
            return function.toString();
          }
        };