/**
 *
 */
export declare class Event {
    private symbol?;
    private from_date?;
    private to_date?;
    private _timeframe?;
    private _historyBarCount?;
    private _historyTickCount?;
    selectSymbol(symbol_name: string): this;
    /**
     * @param from_date this date can be used by retrieving bar_history
     * @returns Event is returned for build data flow for bar_history
     */
    fromDate(from_date: Date): this;
    /**
     * @param to_date this date can be used by retrieving bar_history
     * @returns Event is returned for build data flow for bar_history
     */
    toDate(to_date: Date): this;
    /**
     * @param timeframe Needs when onBar is called
     * @returns Event is returned for build data flow for onBarEvent
     */
    timeframe(timeframe: Timeframe): this;
    /**
     *
     * @param history_bar_count When onBar event called this amount of bars will send to onBar event callbacks
     */
    historyBarCount(history_bar_count: number): this;
    /**
     *
     * @param history_tick_count when onTick event called this amount of ticks will send to onTick event callbacks
     */
    historyTickCount(history_tick_count: number): this;
    /**
     * Convert Javascript date to Mql5 date
     * @param date JavaScript date
     */
    private jsDateToMqlDate;
    /**
     * Get price history bars - requires
     *    1. symbol name
     *    2. timeframe
     *    3. from date
     *    4. to date
     */
    getBars(): Promise<Bar[]>;
    /**
     * onBar event called when a new bar is formed using your specified parameters - requires
     *    1. symbol name
     *    2. timeframe
     *    3. history bar count
     * @param on_bar_callback when a new bar is formed this callback will be called with amount of history bars you specified
     */
    onBar(on_bar_callback: (bars: Bar[]) => void): this;
    /**
     * onTick event will called when a new tick is found - requires
     *    1. symbol name
     *    2. history tick count
     * @param on_tick_callback when a new tick is found this callback will be called with amount of tick history you specified
     */
    onTick(on_tick_callback: (ticks: Tick[]) => void): this;
    /**
     * If onBar event is not needed anymore than unsubscribe it
     */
    unsubscribeOnBarEvent(): void;
    /**
     * If onTick event is not needed anymore than unsubsribe it
     */
    unsubscribeOnTickEvent(): void;
}
export declare enum Timeframe {
    M1 = "M1",
    M2 = "M2",
    M3 = "M3",
    M4 = "M4",
    M5 = "M5",
    M6 = "M6",
    M10 = "M10",
    M12 = "M12",
    M15 = "M15",
    M20 = "M20",
    M30 = "M30",
    H1 = "H1",
    H2 = "H2",
    H3 = "H3",
    H4 = "H4",
    H6 = "H6",
    H8 = "H8",
    H12 = "H12",
    D1 = "D1",
    W1 = "W1",
    MN1 = "MN1"
}
export interface Bar {
    time: string;
    open: number;
    high: number;
    low: number;
    close: number;
    volume: number;
    spread: number;
}
export interface Tick {
    ask: number;
    bid: number;
    flags: TickFlag;
    last: number;
    time: string;
    time_msc: number;
    volume: number;
}
export declare enum TickFlag {
    ASK = "ASK",
    BID = "BID",
    BUY = "BUY",
    SELL = "SELL",
    LAST = "LAST",
    VOLUME = "VOLUME",
    NONE = "NONE"
}