/**
 * config for sigV4Client
 */
export interface sigV4ClientConfig {
    host?: string;
    accessKey?: string;
    secretKey?: string;
    sessionToken?: string;
    serviceName?: string;
    region?: string;
    defaultAcceptType?: string;
    defaultContentType?: string;
    endpoint?: string;
}
/**
 * create the sigV4Client for signed request to AWS
 */
export declare const sigV4Client: (config: sigV4ClientConfig) => {
    [key: string]: any;
};