import { SignatureV4 as BaseSignatureV4 } from "@smithy/signature-v4";
import {
  EventSigner,
  EventSigningArguments,
  FormattedEvent,
  HttpRequest as IHttpRequest,
  MessageSigner,
  RequestPresigner,
  RequestPresigningArguments,
  RequestSigner,
  RequestSigningArguments,
  SignableMessage,
  SignedMessage,
  SigningArguments,
  StringSigner,
} from "@smithy/types";
export declare class WebsocketSignatureV4
  implements
    RequestPresigner,
    RequestSigner,
    StringSigner,
    EventSigner,
    MessageSigner
{
  private readonly signer;
  constructor(options: { signer: BaseSignatureV4 });
  presign(
    originalRequest: IHttpRequest,
    options?: RequestPresigningArguments
  ): Promise<IHttpRequest>;
  sign(stringToSign: string, options?: SigningArguments): Promise<string>;
  sign(event: FormattedEvent, options: EventSigningArguments): Promise<string>;
  sign(
    event: SignableMessage,
    options: SigningArguments
  ): Promise<SignedMessage>;
  sign(
    requestToSign: IHttpRequest,
    options?: RequestSigningArguments
  ): Promise<IHttpRequest>;
  signMessage(
    message: SignableMessage,
    args: SigningArguments
  ): Promise<SignedMessage>;
}