text: // Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
  //
  // 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.
  
  #pragma once
  
  #include "paddle/phi/core/dense_tensor.h"
  
  namespace phi {
  
  template <typename T, typename Context>
  void UniqueKernel(const Context& dev_ctx,
                    const DenseTensor& x,
                    bool return_index,
                    bool return_inverse,
                    bool return_counts,
                    const std::vector<int>& axis,
                    DataType dtype,
                    DenseTensor* out,
                    DenseTensor* indices,
                    DenseTensor* index,
                    DenseTensor* counts);
  
  template <typename T, typename Context>
  void UniqueRawKernel(const Context& dev_ctx,
                       const DenseTensor& x,
                       bool return_index,
                       bool return_inverse,
                       bool return_counts,
                       const std::vector<int>& axis,
                       DataType dtype,
                       bool is_sorted,
                       DenseTensor* out,
                       DenseTensor* indices,
                       DenseTensor* index,
                       DenseTensor* counts);
  
  }  // namespace phi
  