public function getTaxRateForLocation($countryCode = null, $postalCode = null)
    {
        return [
            'tax_rate' => $this->calculator->getTaxRateForLocation($countryCode, $postalCode),
        ];
    }
public function getTaxRateForLocation($countryCode = null, $postalCode = null)
    {
        return [
            'tax_rate' => $this->calculator->getTaxRateForLocation($countryCode, $postalCode),
        ];
    }
public function getTaxRateForLocation ( $ countryCode = null , $ postalCode = null ) { return [ 'tax_rate' => $ this -> calculator -> getTaxRateForLocation ( $ countryCode , $ postalCode ) , ] ; }
Returns the tax rate for the given country code and postal code.

@return \Illuminate\Http\Response
Returns the tax rate for the given country code and postal code .