enum ConditionalHeaderimport { ConditionalHeader } from "https://deno.land/x/http_utils@1.0.0-beta.15/header.ts"; HTTP conditional requests header fields. ExamplesExample 1 import { ConditionalHeader } from "https://deno.land/x/http_utils@$VERSION/mod.ts"; import { assertEquals } from "https://deno.land/std@$VERSION/testing/asserts.ts"; assertEquals(ConditionalHeader.IfNoneMatch, "if-none-match"); MembersIfMatch = "if-match"IfModifiedSince = "if-modified-since"IfNoneMatch = "if-none-match"IfRange = "if-range"IfUnmodifiedSince = "if-unmodified-since"