IBAN\Generation\IBANGenerator::AT PHP Method

    public static function AT($instituteIdentification, $bankAccountNumber)
    {
        $generator = new IBANGeneratorAT();
        return $generator->generate($instituteIdentification, $bankAccountNumber);
    }

 public function testGenerateIbanAT()
 {
     $this->assertIban('AT131490022010010999', IBANGenerator::AT('14900', '22010010999'));
 }