Option returning null with generator arguments

[Lioness100]

I'm using generator arguments and the last option, --name, always returns null when I try to set it.

*args() {
  const member = yield {
    type: "memberMention",
    prompt: {
      start: "...",
      retry: "...",
    },
  };

  const playlist = yield {
    type: (message, phrase) =>
      Playlist.resolvePlaylist(phrase, message.client, member.id), // returns null or object
    match: "rest",
    prompt: {
      start: "...",
      retry: `...`,
    },
  };

  const name = yield {
    type: Argument.validate("string", (m, p, str: string) => str.length <= 20),
    match: "option",
    flag: ["--name", "-n"],
    default: playlist.title,
    prompt: {
      optional: true,
      retry: "Please limit the name to 20 letters and try again",
    },
  };

  return { member, playlist, name };
}

If I omit --name then it uses the set default and works fine. However, if I do use --name or -n, it returns null. This is also the case if I don't provide a string after the flag, or if I provide a string over 20 characters. There is no prompting.

Logging parsed.optionFlags at the bottom also returns an empty array.

[yoon4027]

I guess you are using the stable version?

[Lioness100]

@yoon4027 Yes

[yoon4027]

try using the master version and see if works or not. Let me know!

yarn: yarn add discord-akairo/discord-akairo
npm: npm i discord-akairo/discord-akairo