AiClient::isConfigured( WordPress\AiClient\Providers\Contracts\ProviderAvailabilityInterface|string|WordPress\AiClient\class-string<ProviderInterface> $availabilityOrIdOrClassName ): bool

185    public static function isConfigured($availabilityOrIdOrClassName): bool186    {187        // Handle direct ProviderAvailabilityInterface (backward compatibility)188        if ($availabilityOrIdOrClassName instanceof ProviderAvailabilityInterface) {189            return $availabilityOrIdOrClassName->isConfigured();190        }191        // Handle string input (provider ID or class name) via registry192        if (is_string($availabilityOrIdOrClassName)) {193            return self::defaultRegistry()->isProviderConfigured($availabilityOrIdOrClassName);194        }195        throw new \InvalidArgumentException('Parameter must be a ProviderAvailabilityInterface instance, provider ID string, or provider class name. ' . sprintf('Received: %s', is_object($availabilityOrIdOrClassName) ? get_class($availabilityOrIdOrClassName) : gettype($availabilityOrIdOrClassName)));196    }