setPerformDeepMerging example

            }

            $this->prototype->parent = $node;
            $node->setPrototype($this->prototype->getNode());
        }

        $node->setAllowNewKeys($this->allowNewKeys);
        $node->addEquivalentValue(null, $this->nullEquivalent);
        $node->addEquivalentValue(true, $this->trueEquivalent);
        $node->addEquivalentValue(false, $this->falseEquivalent);
        $node->setPerformDeepMerging($this->performDeepMerging);
        $node->setRequired($this->required);
        $node->setIgnoreExtraKeys($this->ignoreExtraKeys, $this->removeExtraKeys);
        $node->setNormalizeKeys($this->normalizeKeys);

        if ($this->deprecation) {
            $node->setDeprecated($this->deprecation['package'], $this->deprecation['version'], $this->deprecation['message']);
        }

        if (isset($this->normalization)) {
            $node->setNormalizationClosures($this->normalization->before);
            $node->setNormalizedTypes($this->normalization->declaredTypes);