text: // Copyright 2021 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
  //
  //      https://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.
  
  // Generated by the Codegen C++ plugin.
  // If you make any local changes, they will be lost.
  // source: google/spanner/admin/instance/v1/spanner_instance_admin.proto
  
  #ifndef GOOGLE_CLOUD_CPP_GOOGLE_CLOUD_SPANNER_ADMIN_INTERNAL_INSTANCE_ADMIN_METADATA_DECORATOR_H
  #define GOOGLE_CLOUD_CPP_GOOGLE_CLOUD_SPANNER_ADMIN_INTERNAL_INSTANCE_ADMIN_METADATA_DECORATOR_H
  
  #include "google/cloud/spanner/admin/internal/instance_admin_stub.h"
  #include "google/cloud/version.h"
  #include <google/longrunning/operations.grpc.pb.h>
  #include <memory>
  #include <string>
  
  namespace google {
  namespace cloud {
  namespace spanner_admin_internal {
  GOOGLE_CLOUD_CPP_INLINE_NAMESPACE_BEGIN
  
  class InstanceAdminMetadata : public InstanceAdminStub {
   public:
    ~InstanceAdminMetadata() override = default;
    explicit InstanceAdminMetadata(std::shared_ptr<InstanceAdminStub> child);
  
    StatusOr<google::spanner::admin::instance::v1::ListInstanceConfigsResponse>
    ListInstanceConfigs(
        grpc::ClientContext& context,
        google::spanner::admin::instance::v1::ListInstanceConfigsRequest const&
            request) override;
  
    StatusOr<google::spanner::admin::instance::v1::InstanceConfig>
    GetInstanceConfig(
        grpc::ClientContext& context,
        google::spanner::admin::instance::v1::GetInstanceConfigRequest const&
            request) override;
  
    StatusOr<google::spanner::admin::instance::v1::ListInstancesResponse>
    ListInstances(
        grpc::ClientContext& context,
        google::spanner::admin::instance::v1::ListInstancesRequest const& request)
        override;
  
    StatusOr<google::spanner::admin::instance::v1::Instance> GetInstance(
        grpc::ClientContext& context,
        google::spanner::admin::instance::v1::GetInstanceRequest const& request)
        override;
  
    future<StatusOr<google::longrunning::Operation>> AsyncCreateInstance(
        google::cloud::CompletionQueue& cq,
        std::unique_ptr<grpc::ClientContext> context,
        google::spanner::admin::instance::v1::CreateInstanceRequest const&
            request) override;
  
    future<StatusOr<google::longrunning::Operation>> AsyncUpdateInstance(
        google::cloud::CompletionQueue& cq,
        std::unique_ptr<grpc::ClientContext> context,
        google::spanner::admin::instance::v1::UpdateInstanceRequest const&
            request) override;
  
    Status DeleteInstance(
        grpc::ClientContext& context,
        google::spanner::admin::instance::v1::DeleteInstanceRequest const&
            request) override;
  
    StatusOr<google::iam::v1::Policy> SetIamPolicy(
        grpc::ClientContext& context,
        google::iam::v1::SetIamPolicyRequest const& request) override;
  
    StatusOr<google::iam::v1::Policy> GetIamPolicy(
        grpc::ClientContext& context,
        google::iam::v1::GetIamPolicyRequest const& request) override;
  
    StatusOr<google::iam::v1::TestIamPermissionsResponse> TestIamPermissions(
        grpc::ClientContext& context,
        google::iam::v1::TestIamPermissionsRequest const& request) override;
  
    future<StatusOr<google::longrunning::Operation>> AsyncGetOperation(
        google::cloud::CompletionQueue& cq,
        std::unique_ptr<grpc::ClientContext> context,
        google::longrunning::GetOperationRequest const& request) override;
  
    future<Status> AsyncCancelOperation(
        google::cloud::CompletionQueue& cq,
        std::unique_ptr<grpc::ClientContext> context,
        google::longrunning::CancelOperationRequest const& request) override;
  
   private:
    void SetMetadata(grpc::ClientContext& context,
                     std::string const& request_params);
    std::shared_ptr<InstanceAdminStub> child_;
    std::string api_client_header_;
  };  // InstanceAdminMetadata
  
  GOOGLE_CLOUD_CPP_INLINE_NAMESPACE_END
  }  // namespace spanner_admin_internal
  }  // namespace cloud
  }  // namespace google
  
  #endif  // GOOGLE_CLOUD_CPP_GOOGLE_CLOUD_SPANNER_ADMIN_INTERNAL_INSTANCE_ADMIN_METADATA_DECORATOR_H
  