interface ServeInitimport { type ServeInit } from "https://deno.land/x/acorn@0.3.0/types.d.ts"; Propertiesoptionalport: numberoptionalhostname: stringoptionalsignal: AbortSignaloptionalonError: (error: unknown) => Response | Promise<Response>optionalonListen: (params: { hostname: string; port: number; }) => void