function usage(string $argString, string $prefix = null, \CharlotteDunois\Yasmin\Models\User $user = null) {
        if($prefix === null) {
            $prefix = $this->client->commandPrefix;
        }
        
        if($user === null) {
            $user = $this->client->user;
        }
        
        return self::anyUsage($this->name.' '.$argString, $prefix, $user);
    }