Eris\Generator\TupleGenerator::domainsTupleAsString PHP Method

    private function domainsTupleAsString()
    {
        $domainOfElements = '(';
        foreach ($this->generators as $generator) {
            $domainOfElements .= get_class($generator);
            $domainOfElements .= ',';
        }
        return substr($domainOfElements, 0, -1) . ')';
    }