import * as AIError from "../error/index.js";
import type { TranscriptionRequest, TranscriptionResult } from "../transcription/types.js";
export declare const MAX_TRANSCRIPTION_BODY_BYTES: number;
export declare class TranscriptionWireError extends AIError.ValidationError {
    readonly status: number;
    constructor(status: number, message: string, options?: {
        cause?: unknown;
    });
}
export interface TranscriptionParsedRequest {
    modelId: string;
    request: TranscriptionRequest;
}
/** Parse either OpenAI multipart uploads or OpenRouter base64 JSON requests. */
export declare function parseRequest(req: Request): Promise<TranscriptionParsedRequest>;
export interface TranscriptionResponseBody {
    text: string;
    language?: string;
    duration?: number;
    segments?: TranscriptionResult["segments"];
    words?: TranscriptionResult["words"];
    usage: {
        input_tokens: number;
        output_tokens: number;
        total_tokens: number;
        cost: number;
        seconds?: number;
    };
}
/** Encode a canonical result as the shared OpenAI/OpenRouter transcription response. */
export declare function encodeResponse(result: TranscriptionResult): TranscriptionResponseBody;
export declare function formatError(status: number, errorType: string, message: string): Response;