function pumpimport { pump } from "https://dotland.deno.dev/x/proc@0.21.9/legacy/runners/utility.ts"; pump(reader: Deno.Reader & Deno.Closer, writer: Deno.Writer & Deno.Closer): Promise<void>Efficiently pump data from a reader to a writer. Parametersreader: Deno.Reader & Deno.CloserThe reader. writer: Deno.Writer & Deno.CloserThe writer. ReturnsPromise<void>