import { Provider } from '../providers/abstract-provider'; import { Arrayish } from '../utils/bytes'; import { TransactionRequest, TransactionResponse } from '../providers/abstract-provider'; export declare abstract class Signer { readonly provider?: Provider; abstract getAddress(): Promise; abstract signMessage(message: Arrayish | string): Promise; abstract sendTransaction(transaction: TransactionRequest): Promise; constructor(); static isSigner(value: any): value is Signer; }