protected function normalization()
    {
        if (null === $this->normalization) {
            $this->normalization = new NormalizationBuilder($this);
        }

        return $this->normalization;
    }
protected function normalization()
    {
        if (null === $this->normalization) {
            $this->normalization = new NormalizationBuilder($this);
        }

        return $this->normalization;
    }
protected function normalization ( ) { if ( null === $ this -> normalization ) { $ this -> normalization = new NormalizationBuilder ( $ this ) ; } return $ this -> normalization ; }
Gets the builder for normalization rules.

@return NormalizationBuilder
Gets the builder for normalization rules .