/**
 * Original code by PMNDRS
 * Source: https://github.com/pmndrs/react-three-rapier
 * License: MIT License (or specify the appropriate license)
 *
 * Creates a proxy that will create a singleton instance of the given class
 * when a property is accessed, and not before.
 *
 * @returns A proxy and a reset function, so that the instance can created again
 */
export declare function createSingletonProxy<SingletonClass extends object, CreationFn extends () => SingletonClass = () => SingletonClass>(
/**
 * A function that returns a new instance of the class
 */
createInstance: CreationFn): {
    proxy: SingletonClass;
    reset: () => void;
};