/// <reference types="node" />
/**
 * Get the global scope for browsers that do not support globalThis
 * https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/globalThis
 */
export declare function getGlobalThis(): (Window & typeof globalThis) | (NodeJS.Global & typeof globalThis);
/**
 * Test if an object is transferable
 * @param x Object
 */
export declare function isTransferableObject(x: any): boolean;
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