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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license./** * Formats the given date to IMF date time format. (Reference: * https://tools.ietf.org/html/rfc7231#section-7.1.1.1). * IMF is the time format to use when generating times in HTTP * headers. The time being formatted must be in UTC for Format to * generate the correct format. * * @example * ```ts * import { toIMF } from "https://deno.land/std@$STD_VERSION/datetime/to_imf.ts"; * * toIMF(new Date(0)); // => returns "Thu, 01 Jan 1970 00:00:00 GMT" * ``` * @param date Date to parse * @return IMF date formatted string */export function toIMF(date: Date): string {  function dtPad(v: string, lPad = 2): string {    return v.padStart(lPad, "0");  }  const d = dtPad(date.getUTCDate().toString());  const h = dtPad(date.getUTCHours().toString());  const min = dtPad(date.getUTCMinutes().toString());  const s = dtPad(date.getUTCSeconds().toString());  const y = date.getUTCFullYear();  const days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];  const months = [    "Jan",    "Feb",    "Mar",    "Apr",    "May",    "Jun",    "Jul",    "Aug",    "Sep",    "Oct",    "Nov",    "Dec",  ];  return `${days[date.getUTCDay()]}, ${d} ${    months[date.getUTCMonth()]  } ${y} ${h}:${min}:${s} GMT`;}