/// <reference types="node" />
import { ChildProcess } from 'child_process';
import { Component } from '../..';
export interface IProcessComponentMessage {
    event: string;
    reply?: string;
    payload: any[];
}
export interface IProcessState {
    declarations?: string[];
    subscriptions?: string[];
    pid: number;
}
/**
 * The ProcessComponent provides an abstraction on a `process`
 * which holds a stateful connection to another ProcessComponent via IPC.
 */
export declare class ProcessComponent extends Component<any> {
    private process;
    private relaying;
    constructor(emitter: NodeJS.Process | ChildProcess);
    readonly state: IProcessState;
    syncState(state?: IProcessState): Promise<void>;
    emit: (event: string, ...payload: any[]) => Promise<any>;
    emitToProcess: (event: string, ...payload: any[]) => IProcessComponentMessage;
    emitToProcessWithReply: (event: string, ...payload: any[]) => Promise<any>;
    emitToSelf: (event: string, ...payload: any[]) => any;
    private readProcessComponentState({subscriptions, declarations});
    private relaySubscriptionsToProcess();
}