method TextProtoReader.prototype.readMIMEHeaderDeprecatedDeprecatedUse readMimeHeader instead. import { TextProtoReader } from "https://deno.land/std@0.155.0/textproto/mod.ts"; DeprecatedUse readMimeHeader instead. readMIMEHeader(): Promise<Headers | null>ReadMIMEHeader reads a MIME-style header from r. ReturnsPromise<Headers | null>