/// <reference types="node" />
import { EventEmitter } from "events";
import { ObserveWebpackIsoCompilerState, SimpleCompiler } from "../types/compiler";
export declare const resetState: (state?: {}) => {
    isCompiling: boolean;
    beginAt: null;
    error: null;
    lastStats: {
        clientStats: undefined;
        serverStats: undefined;
    };
    compilation: {
        stats: undefined;
        duration: undefined;
    };
};
export declare function observeIsomorphicCompilers(clientCompiler: SimpleCompiler, serverCompiler: SimpleCompiler): {
    eventEmitter: EventEmitter;
    state: ObserveWebpackIsoCompilerState;
};