method CliffyCommand.prototype.hasCommandimport { CliffyCommand } from "https://dotland.deno.dev/x/nessie@2.0.9/deps.ts"; hasCommand(name: string, hidden?: boolean): booleanChecks whether a child command exists by given name or alias. Parametersname: stringName or alias of the command. optionalhidden: booleanInclude hidden commands. Returnsboolean