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.
   */
  
  package io.reactivex.rxjava3.functions;
  
  /**
   * A functional interface (callback) that provides a single value or
   * throws an exception.
   * <p>
   * This interface was added to allow throwing any subclass of {@link Throwable}s,
   * which is not directly possible with the Java standard {@link java.util.concurrent.Callable} interface.
   * @param <T> the value type returned
   * @since 3.0.0
   */
  @FunctionalInterface
  public interface Supplier<T> {
  
      /**
       * Produces a value or throws an exception.
       * @return the value produced
       * @throws Throwable if the implementation wishes to throw any type of exception
       */
      T get() throws Throwable;
  }
  