/// <reference types="node" />
import { EventEmitter } from "events";
import { MarketPosition, PositionStatus } from "../enum";
import { PositionUpdateState, PositionUpdateStateOptions, StateWatcher } from "../types";
import Watcher from "./watcher";
declare interface PositionUpdateWatcher {
    on(event: PositionStatus.Update, listener: (order: PositionUpdateState) => void): this;
}
declare class PositionUpdateWatcher extends EventEmitter implements StateWatcher {
    path: string;
    account: string;
    instrument: string;
    watcher: Watcher;
    state: PositionUpdateState | undefined;
    constructor({ path, account, instrument, onUpdate }: PositionUpdateStateOptions);
    private onModified;
    onUpdate(callback: (order: PositionUpdateState) => void): void;
    get position(): MarketPosition;
    get quantity(): number;
    get price(): number;
}
export default PositionUpdateWatcher;