@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getClusterArn() != null)
            sb.append("ClusterArn: ").append(getClusterArn()).append(",");
        if (getClusterType() != null)
            sb.append("ClusterType: ").append(getClusterType()).append(",");
        if (getStartTime() != null)
            sb.append("StartTime: ").append(getStartTime()).append(",");
        if (getEndTime() != null)
            sb.append("EndTime: ").append(getEndTime()).append(",");
        if (getErrorInfo() != null)
            sb.append("ErrorInfo: ").append(getErrorInfo()).append(",");
        if (getOperationArn() != null)
            sb.append("OperationArn: ").append(getOperationArn()).append(",");
        if (getOperationState() != null)
            sb.append("OperationState: ").append(getOperationState()).append(",");
        if (getOperationType() != null)
            sb.append("OperationType: ").append(getOperationType()).append(",");
        if (getProvisioned() != null)
            sb.append("Provisioned: ").append(getProvisioned()).append(",");
        if (getServerless() != null)
            sb.append("Serverless: ").append(getServerless());
        sb.append("}");
        return sb.toString();
    }
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be
redacted from this string using a placeholder value.

@return A string representation of this object.

@see java.lang.Object#toString()
aws-java-sdk-kafka/src/main/java/com/amazonaws/services/kafka/model/ClusterOperationV2.java