Default Sender Errors

You can set default failedPermissions and failedArguments functions like this:

ds.defaultFailedPermissions(({send}) => {
    send('You don\'t have the permissions to do that!');
});

ds.defaultFailedArguments(({send}) => {
    send('Incorrect arguments!');
});

ds.defaultFailedCooldown(({send, timeleft}) => {
    send(`You need to wait ${timeleft}s!`);
});