/// <reference types="node" />
import { IncomingHttpHeaders } from "http";
import { Header, SdkContext } from "../model";
export declare function date(): string;
export declare function serverMetaInfo(sdkContext: SdkContext): Header;
export declare function isBinaryContent(contentType?: string | null): boolean;
export declare function isJSON(contentType?: string | null): boolean;
export declare function dispositionFilename(headers: IncomingHttpHeaders): string | null;
export declare function contentLength(headers: IncomingHttpHeaders): number | string | null;