Yoast_Product::get_slug PHP Method

        public function get_slug()
        {
            return $this->slug;
        }

 /**
  * Calls the API and, if successfull, returns the object delivered by the API.
  *
  * @uses         get_bloginfo()
  * @uses         wp_remote_post()
  * @uses         is_wp_error()
  *
  * @return false||object
  */
 protected function call_remote_api()
 {
     // only check if a transient is not set (or if it's expired)
     if (get_transient($this->product->get_slug() . '-update-check-error') !== false) {
         return;
     }
     // setup api parameters
     $api_params = array('edd_action' => 'get_version', 'license' => $this->license_key, 'name' => $this->product->get_item_name(), 'slug' => $this->product->get_slug(), 'author' => $this->product->get_author());
     // setup request parameters
     $request_params = array('timeout' => 15, 'sslverify' => false, 'body' => $api_params);
     // call remote api
     $response = wp_remote_post($this->product->get_api_url(), $request_params);
     // wp / http error?
     if (is_wp_error($response)) {
         $this->wp_error = $response;
         // show error to user
         add_action('admin_notices', array($this, 'show_update_error'));
         // set a transient to prevent checking for updates on every page load
         set_transient($this->product->get_slug() . '-update-check-error', true, 60 * 30);
         // 30 mins
         return false;
     }
     // decode response
     $response = json_decode(wp_remote_retrieve_body($response));
     $response->sections = maybe_unserialize($response->sections);
     return $response;
 }