public BehaviorModelTrainingSummary withTrainingDataCollectionStartDate(java.util.Date trainingDataCollectionStartDate) {
        setTrainingDataCollectionStartDate(trainingDataCollectionStartDate);
        return this;
    }
<p>
The date a training model started collecting data.
</p>

@param trainingDataCollectionStartDate
       The date a training model started collecting data.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/BehaviorModelTrainingSummary.java