code: public ServiceFuture<IterationPerformance> getIterationPerformanceAsync(UUID projectId, UUID iterationId, GetIterationPerformanceOptionalParameter getIterationPerformanceOptionalParameter, final ServiceCallback<IterationPerformance> serviceCallback) {
          return ServiceFuture.fromResponse(getIterationPerformanceWithServiceResponseAsync(projectId, iterationId, getIterationPerformanceOptionalParameter), serviceCallback);
      }
docs: Get detailed performance information about an iteration.
  
  @param projectId The id of the project the iteration belongs to
  @param iterationId The id of the iteration to get
  @param getIterationPerformanceOptionalParameter the object representing the optional parameters to be set before calling this API
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object