The default read-only implementation of MostViewedVideo.
The default read-only implementation of MostViewedVideo. You typically should not need to directly reference this class; instead, use the MostViewedVideo.apply method to construct new instances.
This Proxy trait allows you to extend the MostViewedVideo trait with additional state or behavior and implement the read-only methods from MostViewedVideo using an underlying instance.
Field information in declaration order.
Checks that all required fields are non-null.