enum CachingHeaderimport { CachingHeader } from "https://deno.land/x/http_utils@1.0.0-beta.13/header.ts"; HTTP Caching header fields. ExamplesExample 1 import { CachingHeader } from "https://deno.land/x/http_utils@$VERSION/mod.ts"; import { assertEquals } from "https://deno.land/std@$VERSION/testing/asserts.ts"; assertEquals(CachingHeader.CacheControl, "cache-control"); MembersAge = "age"CacheControl = "cache-control"Expires = "expires"