Conference::getPresentersList

public function getPresentersList(): array
{
	$result = [];

	$presenters = BitrixImModelConferenceUserRoleTable::getList(
		[
			'select' => ['USER_ID'],
			'filter' => [
				'=CONFERENCE_ID' => $this->getId(),
				'=ROLE' => self::ROLE_PRESENTER
			]
		]
	)->fetchAll();

	foreach ($presenters as $presenter)
	{
		$result[] = (int)$presenter['USER_ID'];
	}

	return $result;
}