method Command.prototype.envimport { Command } from "https://dotland.deno.dev/x/cliffy@v0.19.2/command/command.ts"; env(name: string,description: string,options?: IEnvVarOptions,): thisAdd new environment variable. Parametersname: stringName of the environment variable. description: stringThe description of the environment variable. optionaloptions: IEnvVarOptionsEnvironment variable options. Returnsthis