export declare const createBody: (params: Record<string, string | number | Blob>) => FormData;
export declare const buildQueryString: (uri: string, params: Record<string, string | number | boolean>) => string;
export declare class ApiError extends Error {
    status: number;
    statusText: string;
    error: string;
    constructor(status: number, statusText: string, error: string, errorArray?: any[]);
}