To be in accordance with [PEP 561](https://www.python.org/dev/peps/pep-0561/) we should add a py.typed file to google/cloud/datastore/py.typed The file can be empty but does need to be present for some type checkers. Also, for this to work, google/cloud/spanner.py needs to be restructured to google/cloud/spanner/__init__.py See https://github.com/googleapis/python-firestore/issues/447 for additional context
To be in accordance with PEP 561 we should add a py.typed file to google/cloud/datastore/py.typed
The file can be empty but does need to be present for some type checkers.
Also, for this to work, google/cloud/spanner.py needs to be restructured to google/cloud/spanner/init.py
See googleapis/python-firestore#447 for additional context