Features

Features

The element 'A' may define an abstract interface, for instance, observability. It called a feature. Another element, let's call it 'B', requires the observability feature but not a particular implementation. It means the B can you any element that provides the observability feature, for instance the A. But if there are other implementations of the observability feature, the B can use them as well.

TODO:(akremenetsky) Add examples

Features:
  observability:
    ...