/**
  * Returns conditional dependencies based on the provider selected
  *
  * @since 1.0.0
  * @see SV_WC_Plugin::get_dependencies()
  * @return array of dependencies
  */
 protected function get_dependencies()
 {
     $dependencies = array();
     foreach ($this->get_providers() as $provider) {
         if ('twitter' === $provider->get_id() && $provider->is_enabled()) {
             $dependencies[] = 'curl';
         }
     }
     return array_merge(parent::get_dependencies(), $dependencies);
 }