method YargsInstance.prototype.addHelpOptimport { YargsInstance } from "https://dotland.deno.dev/x/yargs@v17.7.1-deno/build/lib/yargs-factory.d.ts"; addHelpOpt(opt?: string | false, msg?: string): YargsInstanceParametersoptionalopt: string | falseoptionalmsg: stringReturnsYargsInstance