TaskGroupChanged::getContentBlocks

public function getContentBlocks(): ?array
{
	$model = $this->getHistoryItemModel();
	$task = $this->getTask($model);
	if (is_null($task))
	{
		return null;
	}

	return [
		'ContentBlock' => $this->getTaskTitleBlock($model, $task),
		'client' => $this->getUserBlock($model, Loc::getMessage('TASKS_ON_TASK_GROUP_CHANGED_CHANGE')),
	];
}