Display::isEnabledInCalendarUserField

static function isEnabledInCalendarUserField(string $entityTypeName): bool
{
	if (!Main\Loader::includeModule('calendar'))
	{
		return false;
	}

	$filter = [
		'=ENTITY_ID' => \Bitrix\Crm\Integration\Calendar::USER_FIELD_ENTITY_ID,
		'=FIELD_NAME' => \Bitrix\Crm\Integration\Calendar::EVENT_FIELD_NAME,
	];

	$userField = Main\UserFieldTable::getList([
		'filter' => $filter,
	])->fetch();
	if (!$userField)
	{
		return false;
	}

	return static::isEntityEnabledInUserField($userField, $entityTypeName);
}