code: @Override
      public CreateDirectoryConfigResult createDirectoryConfig(CreateDirectoryConfigRequest request) {
          request = beforeClientExecution(request);
          return executeCreateDirectoryConfig(request);
      }
docs: <p>
  Creates a Directory Config object in AppStream 2.0. This object includes the information required to join
  streaming instances to an Active Directory domain.
  </p>
  
  @param createDirectoryConfigRequest
  @return Result of the CreateDirectoryConfig operation returned by the service.
  @throws ResourceAlreadyExistsException
  The specified resource already exists.
  @throws LimitExceededException
  The requested limit exceeds the permitted limit for an account.
  @throws InvalidAccountStatusException
  The resource cannot be created because your AWS account is suspended. For assistance, contact AWS
  Support.
  @sample AmazonAppStream.CreateDirectoryConfig
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/appstream-2016-12-01/CreateDirectoryConfig"
  target="_top">AWS API Documentation</a>