import { btc } from 'scryptlib-btc';
import { Provider, TransactionResponse, TxHash, UtxoQueryOptions } from "../bsv/abstract-provider";
import { AddressOption, UTXO } from "../bsv/types";
export declare class BlockstreamProvider extends Provider {
    private _network;
    private _isConnected;
    constructor(network: btc.Networks.Network);
    get apiPrefix(): string;
    isConnected(): boolean;
    connect(): Promise<this>;
    private assertConnected;
    updateNetwork(network: btc.Networks.Network): void;
    getNetwork(): btc.Networks.Network;
    sendRawTransaction(rawTxHex: string): Promise<TxHash>;
    listUnspent(address: AddressOption, options?: UtxoQueryOptions): Promise<UTXO[]>;
    getBalance(address: AddressOption): Promise<{
        confirmed: number;
        unconfirmed: number;
    }>;
    getTransaction(txHash: string): Promise<TransactionResponse>;
    getFeePerKb(): Promise<number>;
}