p.get(lex.LSH)
		tok := p.get(scanner.Int)
		amount, err := strconv.ParseInt(tok.String(), 10, 16)
		if err != nil {
			p.errorf("parsing left shift amount: %s", err)
		}
		num = int16(amount)
	} else if p.peek() == '[' {
		// parses an element: [Index]
		p.get('[')
		tok := p.get(scanner.Int)
		index, err := strconv.ParseInt(tok.String(), 10, 16)
		p.get(']')
		if err != nil {

		}
		queueLimit, err := strconv.ParseUint(env.Get(queueLimitEnv, kv.Get(target.KafkaQueueLimit)), 10, 64)
		if err != nil {
			return nil, err
		}

		clientAuthEnv := target.EnvKafkaTLSClientAuth
		if k != config.Default {
			clientAuthEnv = clientAuthEnv + config.Default + k
		}
		clientAuth, err := strconv.Atoi(env.Get(clientAuthEnv, kv.Get(target.KafkaTLSClientAuth)))