code: /*
   * Copyright (c) 2019 the Eclipse Milo Authors
   *
   * This program and the accompanying materials are made
   * available under the terms of the Eclipse Public License 2.0
   * which is available at https://www.eclipse.org/legal/epl-2.0/
   *
   * SPDX-License-Identifier: EPL-2.0
   */
  
  package org.eclipse.milo.opcua.sdk.client.api.services;
  
  import java.util.List;
  import java.util.concurrent.CompletableFuture;
  
  import org.eclipse.milo.opcua.stack.core.types.structured.AddNodesItem;
  import org.eclipse.milo.opcua.stack.core.types.structured.AddNodesResponse;
  import org.eclipse.milo.opcua.stack.core.types.structured.AddReferencesItem;
  import org.eclipse.milo.opcua.stack.core.types.structured.AddReferencesResponse;
  import org.eclipse.milo.opcua.stack.core.types.structured.DeleteNodesItem;
  import org.eclipse.milo.opcua.stack.core.types.structured.DeleteNodesResponse;
  import org.eclipse.milo.opcua.stack.core.types.structured.DeleteReferencesItem;
  import org.eclipse.milo.opcua.stack.core.types.structured.DeleteReferencesResponse;
  
  public interface NodeManagementServices {
  
      CompletableFuture<AddNodesResponse> addNodes(List<AddNodesItem> nodesToAdd);
  
      CompletableFuture<AddReferencesResponse> addReferences(List<AddReferencesItem> referencesToAdd);
  
      CompletableFuture<DeleteNodesResponse> deleteNodes(List<DeleteNodesItem> nodesToDelete);
  
      CompletableFuture<DeleteReferencesResponse> deleteReferences(List<DeleteReferencesItem> referencesToDelete);
  
  }
  