@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getTags() != null)
            sb.append("Tags: ").append(getTags()).append(",");
        if (getDefinition() != null)
            sb.append("Definition: ").append(getDefinition()).append(",");
        if (getTarget() != null)
            sb.append("Target: ").append(getTarget()).append(",");
        if (getGreengrassGroupName() != null)
            sb.append("GreengrassGroupName: ").append(getGreengrassGroupName()).append(",");
        if (getS3BucketName() != null)
            sb.append("S3BucketName: ").append(getS3BucketName()).append(",");
        if (getMetricsConfiguration() != null)
            sb.append("MetricsConfiguration: ").append(getMetricsConfiguration()).append(",");
        if (getFlowActionsRoleArn() != null)
            sb.append("FlowActionsRoleArn: ").append(getFlowActionsRoleArn());
        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-iotthingsgraph/src/main/java/com/amazonaws/services/iotthingsgraph/model/CreateSystemInstanceRequest.java