import type { NetworkRetryRequest } from "../network-retry-engine.js";
export type RetryableApiCallError = Error & {
    url: string;
    requestBodyValues: unknown;
    statusCode?: number;
    responseHeaders?: Record<string, string>;
    responseBody?: string;
    isRetryable: boolean;
    cause: unknown;
    [key: symbol]: unknown;
};
export declare function toRequestUrl(request: Request | URL | string): string;
export declare function getErrorMessage(error: unknown): string;
export declare function isAbortError(error: unknown): boolean;
export declare function createMessageRetryClassifier(options: {
    retryableMessages: string[];
    isAbortError?: (error: unknown) => boolean;
}): (error: unknown) => boolean;
export declare function toRetryableApiCallError(error: unknown, request: {
    url: string;
    body?: string;
}, options: {
    providerLabel: string;
    group: string;
    requestBodyValues?: unknown;
    statusCode?: number;
    responseHeaders?: Headers | Record<string, string>;
    responseBody?: string;
}): RetryableApiCallError;
export declare function isRetryableApiCallError(error: unknown): error is RetryableApiCallError;
export declare function normalizeRetryableStatusResponse(input: {
    response: Response;
    request: NetworkRetryRequest;
    providerLabel: string;
    group: string;
    isRetryableStatus: (status: number) => boolean;
}): Promise<Response>;