import { Connection, PublicKey } from "@solana/web3.js";
import { Network } from "./network";
import { Asset } from "./constants";
import { PriceUpdateAccount } from "@pythnetwork/pyth-solana-receiver/lib/PythSolanaReceiver";
export declare class Oracle {
    private _connection;
    private _network;
    private _data;
    private _eventEmitters;
    private _subscriptionIds;
    private _callback;
    private _pythReceiver;
    constructor(network: Network, connection: Connection);
    getAvailablePriceFeeds(): string[];
    getPrice(asset: Asset): OraclePrice;
    getPriceAge(asset: Asset): number;
    getPriceUpdateAccount(account: PublicKey): Promise<PriceUpdateAccount>;
    pollPrice(asset: Asset, triggerCallback?: boolean): Promise<OraclePrice>;
    subscribePriceFeeds(assetList: Asset[], callback: (asset: Asset, price: OraclePrice, slot: number) => void): Promise<void>;
    close(): Promise<void>;
}
export interface OraclePrice {
    asset: Asset;
    price: number;
    lastUpdatedTime: number;
    lastUpdatedSlot: bigint;
}