export declare const DEFAULT_MODEL_STALL_TIMEOUT_MS = 1200000;
export declare function resolveStallTimeoutMs(): number;
export declare const STALL_TIMEOUT_MESSAGE = "model_stream_stall_timeout";
export declare function isStallTimeoutError(err: unknown): boolean;
export declare function stallTimeoutError(timeoutMs: number): Error;
export interface StreamStallHandle {
    readonly signal: AbortSignal;
    timedOut(): boolean;
    progress(): void;
    dispose(): void;
}
export declare function armStreamStallWatchdog(baseSignal: AbortSignal, timeoutMs: number, onFire?: (info: {
    stallTimeoutMs: number;
    elapsedSinceLastProgressMs: number;
}) => void): StreamStallHandle;