function readTrailersimport { readTrailers } from "https://deno.land/std@0.106.0/http/_io.ts"; readTrailers(headers: Headers, r: BufReader)Read trailer headers from reader and append values to headers. "trailer" field will be deleted. Read trailer headers from reader and append values to headers. "trailer" field will be deleted. Parametersheaders: Headersr: BufReader