import CodexBarCoreimport Foundation struct DeepSeekProviderImplementation: ProviderImplementation {    let id: UsageProvider = .deepseek     @MainActor    func presentation(context _: ProviderPresentationContext) -> ProviderPresentation {        ProviderPresentation { _ in "api" }    }     @MainActor    func observeSettings(_: SettingsStore) {}     @MainActor    func isAvailable(context: ProviderAvailabilityContext) -> Bool {        if DeepSeekSettingsReader.apiKey(environment: context.environment) != nil {            return true        }        return !context.settings.tokenAccounts(for: .deepseek).isEmpty    }     @MainActor    func settingsFields(context _: ProviderSettingsContext) -> [ProviderSettingsFieldDescriptor] {        []    }}