import { ItemListUpdate } from "..";
/** A row on the order book. */
export interface OrderBookRow {
    /** The order's price. */
    price: number;
    /** The order's size. */
    size: number;
    /**
     * The market maker if there are multiple market makers (e.g on ISLAND / NASDAQ ECN),
     * or undefined if its the exchange (no market makers, such as on ARCA).
     */
    marketMaker?: string;
    /**
     * A flag indicating if this is smart depth response
     * (aggregate data from multiple exchanges, v974+).
     */
    isSmartDepth: boolean;
}
/** A row position index on the order book. */
export type OrderBookRowPosition = number;
/** Rows on the order-book (either ask or bid side) */
export type OrderBookRows = ReadonlyMap<OrderBookRowPosition, OrderBookRow>;
/**
 * The order book.
 */
export interface OrderBook {
    /** Rows on the bid-side. */
    bids: OrderBookRows;
    /** Rows on the ask-side. */
    asks: OrderBookRows;
}
/** An update on the order book. */
export type OrderBookUpdate = ItemListUpdate<OrderBook>;