export interface MessageRequest {
    url: string;
    req?: RequestInit;
    requestId: string;
    origin: string;
}
export interface MessageResponse {
    postreq: boolean;
    status: number;
    statusText: string;
    headers: {
        [key: string]: string;
    };
    json?: string;
    blob?: Blob;
    formData?: FormData;
    arrayBuffer?: ArrayBuffer;
    text?: string;
    ok: boolean;
    error?: Error;
    type: string;
    redirected: boolean;
    url: string;
    requestId: string;
}
export declare function random(length: number): string;