code: public function getByHash($columns, string $hash): ?IEntity
  	{
  		if ($this->manager->hasher === null) {
  			throw new MissingServiceException('Hasher is missing');
  		}
  		return $this->toEntity($this->manager->hasher->hashSQL($this->builder(), $columns, $hash));
  	}
docs: Vrati radek podle hash sloupce
  @param string|array $columns
  @param string $hash
  @return IEntity|null