text: //
  // Copyright 2020 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 THIRD_PARTY_CLOUD_SPANNER_EMULATOR_FRONTEND_CONVERTERS_PARTITION_H_
  #define THIRD_PARTY_CLOUD_SPANNER_EMULATOR_FRONTEND_CONVERTERS_PARTITION_H_
  
  #include "frontend/proto/partition_token.pb.h"
  #include "zetasql/base/statusor.h"
  
  namespace google {
  namespace spanner {
  namespace emulator {
  namespace frontend {
  
  // Converts a partition token into a byte string.
  zetasql_base::StatusOr<std::string> PartitionTokenToString(
      const PartitionToken& partition_token);
  
  // Converts a byte string into a partition token.
  zetasql_base::StatusOr<PartitionToken> PartitionTokenFromString(
      const std::string& token);
  
  }  // namespace frontend
  }  // namespace emulator
  }  // namespace spanner
  }  // namespace google
  
  #endif  // THIRD_PARTY_CLOUD_SPANNER_EMULATOR_FRONTEND_CONVERTERS_PARTITION_H_
  