/// <reference types="node" />
import type { SpyInstance } from 'vitest';
import { QueryClient } from '..';
import { MutationInfoOptions } from '../mutationInfo';
export declare function mockVisibilityState(value: DocumentVisibilityState): SpyInstance<[], DocumentVisibilityState>;
export declare function mockOnlineManagerIsOnline(value: boolean): SpyInstance<[], boolean>;
export declare function sleep(timeout: number): Promise<void>;
export declare function setActTimeout(fn: () => void, ms?: number): NodeJS.Timeout;
/**
 * Assert the parameter is of a specific type.
 */
export declare const expectType: <T>(_: T) => void;
export declare const executeMutation: <TData = unknown, TVars = unknown, TError = Error>(queryClient: QueryClient, options: MutationInfoOptions<TData, TVars, TError>, variables: TVars) => Promise<TData>;
export declare function setIsServer(isServer: boolean): () => void;