method Command.prototype.envimport { Command } from "https://dotland.deno.dev/x/cliffy@v0.19.6/mod.ts"; env<G extends Record<string, unknown> | void = CG>(name: string,description: string,options?: IEnvVarOptions,): Command<CO, CA, Merge<CG, MapOptionTypes<G>>, PG, P>Add new environment variable. env<O extends Record<string, unknown> | void = CO>(name: string,description: string,options?: IEnvVarOptions,): Command<Merge<CO, MapOptionTypes<O>>, CA, CG, PG, P>Add new environment variable. Type ParametersoptionalG extends Record<string, unknown> | void = CGParametersname: stringName of the environment variable. description: stringThe description of the environment variable. optionaloptions: IEnvVarOptionsEnvironment variable options. ReturnsCommand<CO, CA, Merge<CG, MapOptionTypes<G>>, PG, P>Type ParametersoptionalO extends Record<string, unknown> | void = COParametersname: stringdescription: stringoptionaloptions: IEnvVarOptionsReturnsCommand<Merge<CO, MapOptionTypes<O>>, CA, CG, PG, P>