import 'core-js/fn/object/entries';
export declare const makeApiUrl: (endpoint: string, url: string, getParams?: object) => string;
export declare const utcTimestamp: () => number;
export declare const isJwtTokenExpired: (token: string) => boolean;
export declare const compose: (...funcs) => (value: any) => any;
export declare const selector: <T>(mappings: {
    [key: string]: Array<(...args: any[]) => any>;
}) => (data: any) => T;
export declare const serializeParams: (params: object) => string;