import type { AxiosError } from "axios";
/**
 * This class provides a wrapper for network errors when making requests to NewsCatcher-V3 Production API
 */
export declare class NewscatcherError extends Error {
    /**
     * The response body
     */
    readonly responseBody: unknown;
    /**
     * The error code provided from the underlying "axios" library which can be
     * more descriptive than the HTTP status descriptions.
     */
    readonly code?: string;
    /**
     * The status code from the response.
     * For explanations, refer to https://developer.mozilla.org/en-US/docs/Web/HTTP/Status
     */
    readonly status?: number;
    /**
     * The status text from the response.
     * For explanations, refer to https://developer.mozilla.org/en-US/docs/Web/HTTP/Status
     */
    readonly statusText?: string;
    /**
     * The URL that the original request was sent to
     */
    readonly url?: string;
    /**
     * HTTP request method (see https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods)
     */
    readonly method?: string;
    constructor(axiosError: AxiosError, responseBody: unknown, headers: unknown);
    toJSON(): {
        name: string;
        message: string;
        method: string | undefined;
        url: string | undefined;
        code: string | undefined;
        status: number | undefined;
        statusText: string | undefined;
        responseBody: unknown;
    };
}
export declare function readableStreamToString(stream: ReadableStream): Promise<string>;
export declare function parseIfJson(input: unknown): object | unknown;