public DatasetGroup withCreationDateTime(java.util.Date creationDateTime) {
        setCreationDateTime(creationDateTime);
        return this;
    }
<p>
The creation date and time (in Unix time) of the dataset group.
</p>

@param creationDateTime
       The creation date and time (in Unix time) of the dataset group.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-personalize/src/main/java/com/amazonaws/services/personalize/model/DatasetGroup.java