import { Decoder, Encoder, MessageHeaders } from "@aws-sdk/types";
export declare class HeaderMarshaller {
  private readonly toUtf8;
  private readonly fromUtf8;
  constructor(toUtf8: Encoder, fromUtf8: Decoder);
  format(headers: MessageHeaders): Uint8Array;
  private formatHeaderValue;
  parse(headers: DataView): MessageHeaders;
}
