/**
 * Single POST to narration generate — no Strapi admin client 401 replay.
 * `useFetchClient().post` retries the full request after token refresh on 401, which
 * would run TTS again and can double-charge ElevenLabs.
 */
export type NarrationGenerateSuccessPayload = {
    textLength: number;
    fileId: number | string;
    narrationRequestId: string;
};
type StrapiWrappedBody = {
    data: NarrationGenerateSuccessPayload;
};
export declare function getAdminBackendBaseUrl(): string;
/** Same shape as Strapi admin `FetchError` for `formatGenerateErrorMessage`. */
export declare class NarrationGenerateRequestError extends Error {
    readonly response?: {
        data: {
            error?: {
                message?: string;
                details?: Record<string, unknown>;
            };
        };
    };
    constructor(message: string, response?: NarrationGenerateRequestError["response"]);
}
export declare function postNarrationGenerateOnce(payload: {
    uid: string;
    documentId: string;
    attributeName: string;
    locale: string | null;
    values: Record<string, unknown>;
    voiceId: string;
}, token: string | null): Promise<{
    data: StrapiWrappedBody;
}>;
export {};