function isPromiseimport { isPromise } from "https://dotland.deno.dev/x/yargs@v17.5.1-deno/lib/utils/is-promise.ts"; isPromise<T>(maybePromise: T | Promise<T>): maybePromise is Promise<T>Type ParametersTParametersmaybePromise: T | Promise<T>ReturnsmaybePromise is Promise<T>