docs: @Override
      public java.util.concurrent.Future<DescribeWorkspaceDirectoriesResult> describeWorkspaceDirectoriesAsync(
              com.amazonaws.handlers.AsyncHandler<DescribeWorkspaceDirectoriesRequest, DescribeWorkspaceDirectoriesResult> asyncHandler) {
  
          return describeWorkspaceDirectoriesAsync(new DescribeWorkspaceDirectoriesRequest(), asyncHandler);
      }