import React from 'react';
import type { SlotComponent } from './types';
export declare function isSlotElement<P = {}, Type = never>(node: React.ReactNode): node is React.ReactElement<P, SlotComponent<P>> & {
    ref?: React.Ref<Type>;
};
export declare function isSlotComponent<T = {}>(type: string | React.JSXElementConstructor<any>): type is SlotComponent<T>;