import type { DevToolsProtocol, Header } from "./types/HttpArchiveFormat.ts";
/**
 * Calculate the size of an HTTP request header represented by a HAR request.
 *
 * For clarity (certainly not efficiency!), it does this this by re-generating the
 * request format and taking the length.
 *
 * The white space on each field lin between the colon ":" that follows the
 * header name and the header value, is "optional white space (OWS)" in the spec.
 * We can't be sure the header that generated this request contained exactly one space
 * after each colon. It is a very strong convention, but it would be follow to assume
 * as a certainly as the convention is easy to defy.
 *
 * This code should never be copied into any application that would assume it correctly
 * calculates the length of that portion of a message buffer.
 *
 * For reference on the request format:
 * https://httpwg.org/specs/rfc9112.html#message.format
 * https://developer.mozilla.org/en-US/docs/Glossary/HTTP_header
 *
 * @param harRequest
 * @returns An approximation of size in bytes of the request header that generated
 * this HAR request, which will be accurate if the request followed norms that
 * are not formal conventions.
 */
export declare const calculateRequestHeaderSize: ({ method, url, httpVersion, headers }: {
    method: string;
    url: string;
    httpVersion: string;
    headers: DevToolsProtocol.Network.Headers;
}) => number;
export declare const calculateResponseHeaderSize: ({ protocol, status, statusText, headers }: DevToolsProtocol.Network.Response & Partial<DevToolsProtocol.Network.GetResponseBodyResponse>) => number;
export declare const sortHarHeadersByName: (headers: Header[]) => Header[];
/**
 * Turn headers of the from of a {[name: string]: string} object into an array of Har Header objects
 * with all header names in lowercase.
 *
 * @param headers Headers in the form returned by the Chrome DevTools Protocol, which are JavaScript
 * objects with header names as keys and values as property values. Some CDP apis used mixed case for
 * names and some use lowercase, so we'll make them all lowercase.
 */
export declare const headersRecordToArrayOfHarHeaders: <T extends Record<string, string>>(headers?: T) => Header[];
/**
 * Perform case-insensitive search for a header in a headers object.
 */
export declare const getHarHeaderValue: (headers: Header[] | undefined, headerToFind: string) => string | undefined;
export declare const getHeaderValue: (headers: DevToolsProtocol.Network.Headers, headerToFind: string) => string | undefined;