public function offsetSet($offset, $argModel)
    {
        if (is_null($offset)) {
            $this->hashedContainer[$argModel->getName()] = $argModel;
            $this->indexedContainer[] = $argModel;

            return;
        }

        $this->hashedContainer[$offset] = $argModel;
        $this->indexedContainer[$offset] = $argModel;
    }