method Command.prototype.descriptionimport { Command } from "https://dotland.deno.dev/x/cliffy@v0.19.2/command/command.ts"; description(description: IDescription<CO, CA, CG, PG, P>): thisSet the long command description. Parametersdescription: IDescription<CO, CA, CG, PG, P>The command description. Returnsthis