import { Transport } from '../core/transport';
export interface BitcoinSendOptions {
    feeRate?: number;
    memo?: string;
}
export interface ApnaBitcoin {
    getAddress(): Promise<string>;
    signMessage(message: string): Promise<string>;
    signPsbt(psbt: string): Promise<string>;
    sendBitcoin(address: string, amountSats: number, opts?: BitcoinSendOptions): Promise<string>;
}
export interface BitcoinProtocolOptions {
    transport: () => Transport;
    isCapabilitySupported?: (capability: string) => boolean;
}
/** Create the low-level Bitcoin protocol module. */
export declare function createBitcoinProtocol(options: BitcoinProtocolOptions): ApnaBitcoin;