/**
* Get the first item from the collection.
*
* @param callable|null $callback
* @param mixed $default
* @return mixed
*/
public function first(callable $callback = null, $default = null)
{
return Arr::first($this->items, $callback, $default);
}
/**
* Get the registered service provider instance if it exists.
*
* @param ServiceProvider|string $provider
* @return ServiceProvider|null
*/
public function getProvider($provider)
{
$name = is_string($provider) ? $provider : get_class($provider);
return Arr::first($this->serviceProviders, function ($key, $value) use($name) {
return $value instanceof $name;
});
}