RedeyeVentures\GeoPattern\GeoPattern::setGenerator PHP Method

    public function setGenerator($generator)
    {
        $generator = strtolower($generator);
        if (in_array($generator, $this->patterns) || is_null($generator)) {
            $this->generator = $generator;
            return $this;
        }
        throw new \InvalidArgumentException("{$generator} is not a valid generator type.");
    }