export type Extended<A, B> = (A extends Function ? A : B) & {
	[K in keyof (A & B)]: K extends keyof B
		? B[K]
		: K extends keyof A
		? A[K]
		: unknown;
};
/**
 * Creates an object extension
 * @param parent any extensible object or function
 * @param extensions optional objects providing additional properties
 * @returns `A & B`
 * ### How are properties and methods resolved?
 * - calling the extent directly invokes the parent if the parent
 */
export declare function extend<A extends Function | object, B>(
	parent: A,
	...extensions: B[]
): Extended<A, B>;
export default extend;