core-bundle/src/Picker/PickerBuilder.php
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);
    }
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);
    }
{@inheritdoc}