@Override
    public String toString() {
        return "HeaderV1{" +
                "name='" + name + '\'' +
                ", agentId='" + agentId + '\'' +
                ", agentName='" + agentName + '\'' +
                ", applicationName='" + applicationName + '\'' +
                ", agentStartTime=" + agentStartTime +
                ", socketId=" + socketId +
                ", serviceType=" + serviceType +
                ", supportCommandCodeList=" + supportCommandCodeList +
                ", grpcBuiltInRetry='" + grpcBuiltInRetry + '\'' +
                ", properties=" + properties +
                '}';
    }
@author Woonduk Kang(emeroad)
@author jaehong.kim
grpc/src/main/java/com/navercorp/pinpoint/grpc/HeaderV1.java