/**
 * [WHO]: getEnvApiKey, stream, streamSimple, complete, completeSimple, RetryOptions
 * [FROM]: Depends on ./api-registry.js, providers/register-builtins.js, and utils/http-proxy.js
 * [TO]: Consumed by core/lib/ai/src/index.ts
 * [HERE]: core/lib/ai/src/stream.ts - provider streaming entrypoint with lazy provider resolution, retry, abort, and factory-error event handling
 */
import "./providers/register-builtins.js";
import "./utils/http-proxy.js";
import type { Api, AssistantMessage, Context, Model, ProviderStreamOptions, SimpleStreamOptions } from "./types.js";
import { AssistantMessageEventStream } from "./utils/event-stream.js";
export { getEnvApiKey } from "./env-api-keys.js";
export interface RetryOptions {
    /** Maximum number of retry attempts (default: 3). Ignored when persistentRetry is true. */
    maxRetries?: number;
    /** Base delay in ms for exponential backoff (default: 1000) */
    baseDelayMs?: number;
    /** Maximum delay cap in ms (default: 30000, or 300000 for persistentRetry) */
    maxDelayMs?: number;
    /** Whether to add jitter to avoid thundering herd (default: true) */
    jitter?: boolean;
    /**
     * Persistent/unattended retry mode for 429/529 overload errors.
     * When true, retries indefinitely with capped backoff and periodic heartbeat yields.
     * Only applies to overload errors (429, 529); other retriable errors still respect maxRetries.
     */
    persistentRetry?: boolean;
    /** Heartbeat interval in ms during persistent retry to prevent idle timeouts (default: 30000) */
    heartbeatMs?: number;
}
export declare function stream<TApi extends Api>(model: Model<TApi>, context: Context, options?: ProviderStreamOptions): AssistantMessageEventStream;
export declare function complete<TApi extends Api>(model: Model<TApi>, context: Context, options?: ProviderStreamOptions): Promise<AssistantMessage>;
export declare function streamSimple<TApi extends Api>(model: Model<TApi>, context: Context, options?: SimpleStreamOptions): AssistantMessageEventStream;
export declare function completeSimple<TApi extends Api>(model: Model<TApi>, context: Context, options?: SimpleStreamOptions): Promise<AssistantMessage>;