CIMChat::SetDescription

public function SetDescription($chatId, $description)
{
	BitrixImModelChatTable::update($chatId, Array(
		'DESCRIPTION' => $description
	));

	if (CModule::IncludeModule('pull'))
	{
		$arRelation = self::GetRelationById($chatId, false, true, false);
		BitrixPullEvent::add(array_keys($arRelation), Array(
			'module_id' => 'im',
			'command' => 'chatDescription',
			'params' => Array(
				'chatId' => $chatId,
				'description' => BitrixImText::parse($description)
			),
			'extra' => BitrixImCommon::getPullExtra()
		));
	}

	return true;
}