import type { IAsyncDisposable, IDisposable } from '../disposable.js';
/**
 * Convert "dispose function" to disposable object
 * @public
 */
export declare function functionToDisposable<RT>(fn: () => RT): RT extends Promise<any> ? IAsyncDisposable : IDisposable;
/**
 * convert disposable object to function
 * eg.
 *
 * useEffect(() => {
 * 	const disposable = new Xyz();
 * 	return toFunction(disposable);
 * }, [])
 */
export declare function disposerFunction<T extends IDisposable | IAsyncDisposable>(obj: T): T extends IAsyncDisposable ? () => Promise<void> : () => void;
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