code: @Override
      public DescribeLocationsResult describeLocations(DescribeLocationsRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeLocations(request);
      }
docs: <p>
  Lists the AWS Direct Connect locations in the current AWS Region. These are the locations that can be selected
  when calling <a>CreateConnection</a> or <a>CreateInterconnect</a>.
  </p>
  
  @param describeLocationsRequest
  @return Result of the DescribeLocations operation returned by the service.
  @throws DirectConnectServerException
  A server-side error occurred.
  @throws DirectConnectClientException
  One or more parameters are not valid.
  @sample AmazonDirectConnect.DescribeLocations
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/directconnect-2012-10-25/DescribeLocations"
  target="_top">AWS API Documentation</a>