Adopt variadic methods throughout because it enforces types. DX

example adoption:

From BeforeAdoption.
a.) class: Geocoder\ProviderAggregator
b.) method def: registerProviders(array $providers = []);
c.) sample method call: $geocoder->registerProviders([new \Geocoder\Provider\GoogleMaps\GoogleMaps($adapter), new \Geocoder\Provider\Yandex\Yandex($adapter),]);

To AfterAdoption.
a.) class: Geocoder\ProviderAggregator
b.) method def: registerProviders(Providers ...$providers);
c.) method call: $geocoder->registerProviders(new \Geocoder\Provider\GoogleMaps\GoogleMaps($adapter));
d.) method call: $geocoder->registerProviders(new \Geocoder\Provider\GoogleMaps\GoogleMaps($adapter), new XXProvider);
e.) method call: $providers = [new \Geocoder\Provider\GoogleMaps\GoogleMaps($adapter), new \Geocoder\Provider\Yandex\Yandex($adapter),]; $geocoder->registerProviders(... $providers);

Start by locating the Geocoder\ProviderAggregator class and its registerProviders method. Review the current array-based signature and calls, then identify the other methods covered by “throughout.” Done means the affected methods accept typed variadic providers and their calls support individual providers and unpacked arrays as described.