public UpdateChannelGroupResult withModifiedAt(java.util.Date modifiedAt) {
        setModifiedAt(modifiedAt);
        return this;
    }
<p>
The date and time the channel group was modified.
</p>

@param modifiedAt
       The date and time the channel group was modified.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mediapackagev2/src/main/java/com/amazonaws/services/mediapackagev2/model/UpdateChannelGroupResult.java