text: // Copyright 2018 Google LLC
  //
  // 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.
  
  #ifndef CC_TF_UTILS_H_
  #define CC_TF_UTILS_H_
  
  #include <string>
  
  #include "cc/mcts_player.h"
  
  namespace minigo {
  namespace tf_utils {
  
  // Writes a list of tensorflow Example protos to a zlib compressed TFRecord
  // file, one for each position in the player's move history.
  // Each example contains:
  //   x: the input BoardFeatures as bytes.
  //   pi: the search pi as a float array, serialized as bytes.
  //   outcome: a single float containing the game result +/-1.
  // CHECK fails if the binary was not compiled with --define=tf=1.
  void WriteGameExamples(const std::string& output_dir,
                         const std::string& output_name,
                         const MctsPlayer& player);
  
  }  // namespace tf_utils
  }  // namespace minigo
  
  #endif  // CC_TF_UTILS_H_
  