import { AcelonSdkOptions, CheckExchangeHealthParams, FetchPricesParams, GetPricesResult } from './types';
/**
 * AcelonSdk provides methods to interact with the Acurast Oracle network.
 */
export declare class AcelonSdk {
    private client;
    private keyPair;
    private pendingRequests;
    private initPromise;
    private oracles;
    private wssUrls;
    private timeout;
    private logging;
    private errorThreshold;
    private idToPubKeyMap;
    /**
     * Creates an instance of AcelonSdk.
     * @param {AcelonSdkOptions} options - The configuration options.
     */
    constructor(options: AcelonSdkOptions);
    private init;
    private fetchDefaultSettings;
    private generateKeyPair;
    private handleMessage;
    private isValidResponse;
    private sendRequestToOracles;
    private sendRequest;
    private validateFetchPricesParams;
    /**
     * Fetches price data from the oracle network.
     * @param {FetchPricesParams} params - The parameters for fetching prices.
     * @param {number} verifications - The number of verifications required (default: 0).
     * @returns {Promise<GetPricesResult[]>} A promise that resolves to an array of combined signed prices.
     */
    getPrices(params: FetchPricesParams, verifications?: number): Promise<GetPricesResult[]>;
    private combineSignedPrices;
    /**
     * Retrieves a list of available exchanges.
     * @param {CheckExchangeHealthParams} params - The parameters for checking exchange health.
     * @returns {Promise<string[]>} A promise that resolves to an array of available exchange IDs.
     */
    getExchanges(params?: CheckExchangeHealthParams, requiredResponses?: number): Promise<string[]>;
    /**
     * Pings the oracles.
     * @returns {Promise<{ status: string; timestamp: number, pubKey: string }[]>} A promise that resolves to the list reachable oracles.
     */
    ping(): Promise<{
        status: string;
        timestamp: number;
        pubKey: string;
    }[]>;
    /**
     * Retrieves the list of oracles.
     * @returns {Promise<string[]>} A promise that resolves to an array of oracle IDs.
     */
    getOracles(): Promise<string[]>;
    /**
     * Closes the WebSocket connection.
     * @returns {Promise<void>} A promise that resolves when the connection is closed.
     */
    close(): Promise<void>;
    private log;
}