/*
 *  ******************************************************************************
 *  *
 *  *
 *  * This program and the accompanying materials are made available under the
 *  * terms of the Apache License, Version 2.0 which is available at
 *  * https://www.apache.org/licenses/LICENSE-2.0.
 *  *
 *  * See the NOTICE file distributed with this work for additional
 *  * information regarding copyright ownership.
 *  * 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.
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 *  * SPDX-License-Identifier: Apache-2.0
 *  *****************************************************************************
 */

//
// @author Paul Dubs
//

#ifndef LIBND4J_ATTENTIONHELPER_H
#define LIBND4J_ATTENTIONHELPER_H

#include "array/NDArray.h"

namespace sd {
    class ND4J_EXPORT AttentionHelper {

    public:
        static sd::NDArray multiHeadProject(const sd::NDArray* input, const sd::NDArray* projectionMatrix, sd::LaunchContext * context = sd::LaunchContext ::defaultContext());
        static void multiHeadProjectBp(const sd::NDArray* input, const sd::NDArray* projectionMatrix, const sd::NDArray* eps, sd::NDArray* dLdInput, sd::NDArray* dLdProjectionMatrix, sd::LaunchContext * context = sd::LaunchContext ::defaultContext());
    };
}


#endif