default Set<ContainerModel> group(Set<TaskModel> taskModels, GrouperMetadata grouperMetadata) {
    return group(taskModels);
  }
Groups the taskModels into set of {@link ContainerModel} using the metadata of
the job from {@link GrouperMetadata}.

@param taskModels the set of tasks to group into containers.
@param grouperMetadata provides the historical metadata of the samza job.
@return the grouped {@link ContainerModel} built from the provided taskModels.
samza-core/src/main/java/org/apache/samza/container/grouper/task/TaskNameGrouper.java