import type { Reducer } from 'redux';
import { RequiredApiRequest } from '.';
export declare const noop: () => void;
export declare const isFn: (fn?: any) => any;
export declare const isObject: (obj?: any) => boolean;
export declare const createAction: (curType: string) => {
    (): {
        type: string;
    };
    toString(): string;
};
export declare function setupStore(saga: any, reducers?: {
    [key: string]: Reducer;
}): any;
export declare const mergeHeaders: (cur?: {
    [key: string]: string;
} | undefined, next?: {
    [key: string]: string;
} | undefined) => HeadersInit;
export declare const mergeRequest: (cur?: Partial<{
    url: string;
} & RequestInit> | null | undefined, next?: Partial<{
    url: string;
} & RequestInit> | null | undefined) => RequiredApiRequest;
export declare const sleep: (n: number) => Promise<void>;