Variation/AbstractVariation.php
public function addNested(VariationInterface $variation) : VariationInterface
    {
        $this->configResolver->addCallback($this);
        $this->nested[] = $variation;

        return $this;
    }
public function addNested(VariationInterface $variation) : VariationInterface
    {
        $this->configResolver->addCallback($this);
        $this->nested[] = $variation;

        return $this;
    }
public function addNested ( VariationInterface $ variation ) : VariationInterface { $ this -> configResolver -> addCallback ( $ this ) ; $ this -> nested [ ] = $ variation ; return $ this ; }
{@inheritdoc}
{