import { Transport } from '../core/transport';
export interface EthereumTransactionRequest {
    to?: string;
    from?: string;
    value?: string;
    data?: string;
    chainId?: string | number;
    gas?: string;
    gasPrice?: string;
    maxFeePerGas?: string;
    maxPriorityFeePerGas?: string;
    nonce?: string;
}
export interface ApnaEthereum {
    request<T = unknown>(method: string, params?: unknown[]): Promise<T>;
    getAddress(): Promise<string>;
    signMessage(message: string): Promise<string>;
    signTypedData(data: unknown): Promise<string>;
    sendTransaction(tx: EthereumTransactionRequest): Promise<string>;
}
export interface EthereumProtocolOptions {
    transport: () => Transport;
    isCapabilitySupported?: (capability: string) => boolean;
}
/** Create the low-level Ethereum protocol module. */
export declare function createEthereumProtocol(options: EthereumProtocolOptions): ApnaEthereum;