import type Signature from './signature';
export declare enum SignType {
    SHA256 = "SHA256",
    SHA512 = "SHA512"
}
export declare class HttpHeader {
    /** Sign value. */
    authorization: string;
    /** application/json. */
    contentType: string;
    /**
     * The request time. The format is
       YYYY-MM-DDThh:mm:ss+hh:00. Such as 2020-03-04T15:39:40+08:00.
     */
    dateTime: string;
    /**
     * The suggested value is UUID or GUID to mark this request, such as
       2d21a5715c034efb7e0aa383b885fc7a. Do not exceed 32 characters in length.
     */
    msgID: string;
    /** Algorithm for calculating signatures. SHA256 or SHA512. */
    signType: SignType;
    constructor(signType: SignType, signature: Signature);
    toRecord(): Record<string, string>;
}
export default HttpHeader;