What copyright line should I include in a project that has classes derived from Mug?

[hamishlawson]

I have a library that has classes derived from Mug's BiStream and friends. In the licence header for each of those I intend to include a relevant copyright notice for Mug. But it seems that the only files in Mug that have a copyright notice are those in the function package:

Copyright (C) google.com

Is that what I should used for BiStream etc?

[fluentfuture]

Yes. That should work.

I think these copyright sections have been maintained sloppily.