code: public function create(PickerConfig $config): ?Picker
      {
          $providers = $this->providers;
  
          if (\is_array($allowed = $config->getExtra('providers'))) {
              $providers = array_intersect_key($providers, array_flip($allowed));
          }
  
          $providers = array_filter(
              $providers,
              static function (PickerProviderInterface $provider) use ($config): bool {
                  return $provider->supportsContext($config->getContext());
              }
          );
  
          if (empty($providers)) {
              return null;
          }
  
          return new Picker($this->menuFactory, $providers, $config);
      }
docs: {@inheritdoc}