import type { ProcessRealm } from './ProcessRealm';
export declare function isServer(): boolean;
export declare function isClient(): boolean;
export declare function registerServerId(id: string): void;
export declare function isJestWorker(): boolean;
export declare function injectRealmIntoSandbox(sandbox: any, realm: ProcessRealm): ProcessRealm;
/**
 * Workaround for the fallback mode, when Jest uses jest-environment-node.
 * Jest blindly copies `globalThis` into the sandbox, so it is not enough to
 * simply check that __JEST_METADATA_SANDBOX__ is not truthy.
 *
 * This is especially bad in Jest's single worker mode, because
 * reporter's globalThis === testEnvironment's globalThis == sandbox.
 *
 * This hook is enabled after the copying happens, and disabled at later stages
 * when all potentially conflicting packages are loaded. It is not easy to
 * grasp, but it works.
 */
export declare function detectDuplicateRealms(enabled: boolean): void;
export declare function getSandboxedRealm(): ProcessRealm | undefined;
export declare function getServerId(): string | undefined;
export declare function getClientId(): string;