import { MempoolOptions, Transaction, AddressState, WalletState } from './interfaces';
declare const walletEventTypes: readonly ["addressReady", "txAdded", "txConfirmed", "txRemoved", "txEvent", "wsConnected", "wsDisconnected", "wsError"];
type WalletEvent = typeof walletEventTypes[number];
export interface SubscriptionEvent {
    event?: 'added' | 'confirmed' | 'removed';
    address?: string;
    tx?: Transaction;
    state?: AddressState;
    err?: any;
}
export declare class MempoolWallet {
    private api;
    private ws;
    private tracking;
    private observerId;
    private observers;
    constructor(options: MempoolOptions);
    destroy(): void;
    private notifyObservers;
    private onTransactionUnconfirmed;
    private onTransactionConfirmed;
    private onTransactionRemoved;
    private onWebsocketError;
    private onWebsocketDisconnected;
    private onWebsocketConnected;
    private fetchAddressBacklog;
    connect(): Promise<void>;
    disconnect(): void;
    resync(): Promise<void>;
    subscribe(event: WalletEvent, fn: (args: SubscriptionEvent) => void): () => void;
    getAddressState(address: string): AddressState | null;
    getWalletState(): WalletState;
    restore(state: WalletState): Promise<void>;
    trackAddresses(addresses: string[]): Promise<void>;
    untrackAddresses(addresses: string[]): void;
}
export {};