TaskManager::getItemTaskParticipants

public function getItemTaskParticipants(Item $item, int $taskUserStatus = null): array
{
	$taskUserStatus = $taskUserStatus ?? CBPTaskUserStatus::Waiting;

	$documentId = DocumentItem::makeComplexId($item->getType()->getId(), $item->getId());
	$instanceIds = WorkflowInstanceTable::getIdsByDocument($documentId);
	$workflowId = reset($instanceIds);

	return $workflowId ? CBPTaskService::getWorkflowParticipants($workflowId, $taskUserStatus) : [];
}