code: @Override
      public DescribeDirectoryConfigsResult describeDirectoryConfigs(DescribeDirectoryConfigsRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeDirectoryConfigs(request);
      }
docs: <p>
  Retrieves a list that describes one or more specified Directory Config objects for AppStream 2.0, if the names
  for these objects are provided. Otherwise, all Directory Config objects in the account are described. These
  objects include the information required to join streaming instances to an Active Directory domain.
  </p>
  <p>
  Although the response syntax in this topic includes the account password, this password is not returned in the
  actual response.
  </p>
  
  @param describeDirectoryConfigsRequest
  @return Result of the DescribeDirectoryConfigs operation returned by the service.
  @throws ResourceNotFoundException
  The specified resource was not found.
  @sample AmazonAppStream.DescribeDirectoryConfigs
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/appstream-2016-12-01/DescribeDirectoryConfigs"
  target="_top">AWS API Documentation</a>