UserTable::filterExternalUserTypes

static function filterExternalUserTypes(array $skipTypes = []): array
{
	$types = BitrixMainUserTable::getExternalUserTypes();
	if (empty($skipTypes))
	{
		return $types;
	}

	$types = array_filter($types, function($authId) use ($skipTypes) {
		return !in_array($authId, $skipTypes, true);
	});

	return $types;
}