export interface FatalApiError {
    error: boolean;
    message: string;
    reference?: string;
    code: number;
    req?: string;
    method?: string;
}
export declare function throwIfError(call: unknown): Error | void;
export declare class DeferredPromise {
    private resolveFn;
    private rejectFn;
    promise: Promise<unknown>;
    constructor();
    resolve(arg?: unknown): Promise<unknown>;
    reject(arg?: unknown): Promise<unknown>;
}