import React from 'react';
export declare class EComponent<P = Record<string, never>, S = Record<string, never>> extends React.Component<P, S> {
    setDraftState(fn: (state: S) => void, callback?: () => void): any;
}
export declare class EPureComponent<P = Record<string, never>, S = Record<string, never>> extends React.PureComponent<P, S> {
    setDraftState(fn: (state: S) => void, callback?: () => void): any;
}