export declare function modelUrlBase(): string;
export type FetchModelResult = {
    ok: true;
} | {
    ok: false;
    reason: string;
    classification: "offline" | "stalled" | "locked" | "corrupt" | "error";
};
export interface FetchModelOpts {
    onProgress?: (bytesDone: number, totalBytes: number) => void;
    signal?: AbortSignal;
}
export declare function fetchModel(opts?: FetchModelOpts): Promise<FetchModelResult>;
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