Artesaos\SEOTools\OpenGraph::setProperties PHP Method

    protected function setProperties($type = null, $key = null, $attributes = [], $validKeys = [])
    {
        if (isset($this->properties['type']) && $this->properties['type'] == $type) {
            foreach ($attributes as $attribute => $value) {
                if (in_array($attribute, $validKeys)) {
                    $this->{$key}[$attribute] = $value;
                }
            }
        }
    }