private function createEntityID(string $id): EntityID
    {
        return new EntityID($this->entityManager, $this->className, $id);
    }
private function createEntityID(string $id): EntityID
    {
        return new EntityID($this->entityManager, $this->className, $id);
    }
private function createEntityID ( string $ id ) : EntityID { return new EntityID ( $ this -> entityManager , $ this -> className , $ id ) ; }
Create EntityID to retrieve entity from DB later on

@param string $id

@return EntityID
Create EntityID to retrieve entity from DB later on