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The Java operations layer for the MongoDB Java Driver. Third parties can ' + 'wrap this layer to provide custom higher-level APIs

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/*
 * Copyright 2008-present MongoDB, Inc.
 *
 * 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 com.mongodb.internal.async;

import com.mongodb.lang.Nullable;

/**
 * See {@link AsyncRunnable}
 * 
 * This class is not part of the public API and may be removed or changed at any time
 */
@FunctionalInterface
public interface AsyncFunction {
    /**
     * This should not be called externally, but should be implemented as a
     * lambda. To "finish" an async chain, use one of the "finish" methods.
     *
     * @param value A {@code @}{@link Nullable} argument of the asynchronous function.
     * @param callback the callback
     */
    void unsafeFinish(T value, SingleResultCallback callback);
}