You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: consumer_handler.go
    path of file: ./repos/eagle/pkg/queue/kafka
    
    the code of the file until where you have to start completion: package kafka

import (
	"fmt"
	"log"

	"github.com/Shopify/sarama"
)

// ConsumerGroupHandler represents the sarama consumer group
type ConsumerGroupHandler 
    
func (h ConsumerGroupHandler) ConsumeClaim(session sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {
	for msg := range claim.Messages() {
		fmt.Printf(
			"Message topic:%q partition:%d offset:%d message: %v\n",
			msg.Topic, msg.Partition, msg.Offset, string(msg.Value),
		)

		session.MarkMessage(msg, "")

		log.Printf(" [*] Waiting for messages. To exit press CTRL+C")
	}

	return nil
}