method YargsInstance.prototype.completionimport { YargsInstance } from "https://dotland.deno.dev/x/yargs@v17.7.1-deno/build/lib/yargs-factory.d.ts"; completion(cmd?: string,desc?: string | false | CompletionFunction,fn?: CompletionFunction,): YargsInstanceParametersoptionalcmd: stringoptionaldesc: string | false | CompletionFunctionoptionalfn: CompletionFunctionReturnsYargsInstance