import { ReactNode, ReactElement } from 'react';
export declare function getValidChildren(children: ReactNode): ReactElement<any, string | import("react").JSXElementConstructor<any>>[];
export declare function isFunction<T extends Function = Function>(value: any): value is T;
export declare function runIfFn<T, U>(valueOrFn: T | ((...fnArgs: U[]) => T), ...args: U[]): T;
export declare function useGetLatest<T>(val: T): () => T;
export declare function useControlledState<T>({ initial, value, onChange, }: {
    initial?: T;
    value?: T;
    onChange?: (state: T) => void;
}): [T, (state: T) => void];