import type { TargetWindow } from 'roosterjs-editor-types';
/**
 * @internal Export for test only
 * Try get window from the given node or range
 * @param node Source node to get window from
 */
export declare function getTargetWindow<T extends TargetWindow = TargetWindow>(node: Node): T;
/**
 * Check if the given object is instance of the target type
 * @param obj Object to check
 * @param typeName Target type name
 */
export default function safeInstanceOf<T extends keyof W, W extends TargetWindow = TargetWindow>(obj: any, typeName: T): obj is W[T];