public DescribeRetrainingSchedulerResult withLookbackWindow(String lookbackWindow) {
        setLookbackWindow(lookbackWindow);
        return this;
    }
<p>
The number of past days of data used for retraining.
</p>

@param lookbackWindow
       The number of past days of data used for retraining.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-lookoutequipment/src/main/java/com/amazonaws/services/lookoutequipment/model/DescribeRetrainingSchedulerResult.java