import type { ProviderId } from "../../types.js";
import type { LlmProvider, ProviderAuth } from "../provider.js";
export declare const providers: Record<ProviderId, LlmProvider>;
export declare function requestedRealKeyCount(provider: ProviderId): Promise<number>;
export declare function buildFallbackChain(requested: ProviderId, freeOnly: boolean, enabled?: boolean, preferAlternates?: boolean): ProviderId[];
export declare function getProvider(provider: ProviderId): LlmProvider;
export declare function providerAuth(provider: ProviderId): Promise<ProviderAuth>;
export declare function authForSlot(providerId: ProviderId, value: string | undefined): ProviderAuth;