import React, { ComponentClass, FunctionComponent, MutableRefObject } from 'react';
import type { TypeOmit } from '../interface';
import { Observer } from '../util';
/**
 * 组件高阶函数
 * @param Comp 基础组件
 * @param displayName
 */
export declare function compHoc<P, T = any>(Comp: FunctionComponent<P & {
    outRef: MutableRefObject<T>;
    observer: Observer;
}> | ComponentClass<any, any>, displayName?: string): React.ForwardRefExoticComponent<React.PropsWithoutRef<TypeOmit<P & {
    id?: string | undefined;
}, "outRef">> & React.RefAttributes<{
    [x: string]: any;
    getApi(): T;
}>>;