code: /*
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  /**
   * Default wrappers and implementations for {@link org.reactivestreams.Subscriber Subscriber}-based consumer classes and interfaces,
   * including disposable ({@link io.reactivex.rxjava3.subscribers.DisposableSubscriber DisposableSubscriber}) and resource-tracking
   * ({@link io.reactivex.rxjava3.subscribers.ResourceSubscriber ResourceSubscriber})
   * variants and the {@link io.reactivex.rxjava3.subscribers.TestSubscriber TestSubscriber} that allows unit testing
   * {@link io.reactivex.rxjava3.core.Flowable Flowable}-based flows.
   */
  package io.reactivex.rxjava3.subscribers;
  