LiteralArgument not works

[tanyaofei]

CommandAPI version

9.0.3

Minecraft version

1.20.1

Are you shading the CommandAPI?

Yes

What I did

new CommandAPICommand("mapdel")
    .withAliases("networkmap:mapdel")
    .withOptionalArguments("confirm")
    .executesPlayer((sender, args) -> {
        boolean confirm = args.get("confirm") != null;
    })
    .register();

What actually happened

Can not get the confirm argument

What should have happened

Get the argument.

Server logs and CommandAPI config

No response

Other

Here is what I did on loading my plugin:

    @Override
    public void onLoad() {
        instance = this;
        CommandAPI.onLoad(new CommandAPIBukkitConfig(this).silentLogs(true));
    }

    @Override
    public void onEnable() {
        CommandRegistry.register();  // register all my commands
        CommandAPI.onEnable();
    }

[tanyaofei]

Well, I found the reason in Document.

Developer's Note:
There is a simpler alternative to the LiteralArgument class! Instead of having to deal with arguments not being present in the array of arguments, consider using the much more intuitive MultiLiteralArgument, which is described in more detail here!