MergeBuilder example

    protected function validation(): ValidationBuilder
    {
        return $this->validation ??= new ValidationBuilder($this);
    }

    /** * Gets the builder for merging rules. */
    protected function merge(): MergeBuilder
    {
        return $this->merge ??= new MergeBuilder($this);
    }

    /** * Gets the builder for normalization rules. */
    protected function normalization(): NormalizationBuilder
    {
        return $this->normalization ??= new NormalizationBuilder($this);
    }

    /** * Instantiate and configure the node according to this definition. * * @throws InvalidDefinitionException When the definition is invalid */