feat: add firestore bundles

[craiglabenz]

No description provided.

[schmidt-sebastian]

Some comments. Before merging, can you coordinate a test with wuandy@ to make sure that these Bundles load in our clients.

[wu-hui]

Thanks for incorporating the comments! I think we are close now.

I do want to discuss the possibility of accepting list of documents for addNamedQuery, please let me know what do you think.

[craiglabenz]

That's reasonable, @wu-hui. Adding now.

[craiglabenz]

@wu-hui On second thought, accepting a list of DocumentSnapshot instances creates a new unsolved problem around how to reconstruct a proper NamedQuery object. I might vote that we defer that option for now.

[schmidt-sebastian]

@wu-hui Can we just treat queries and documents as independent? The Python SDK could offer APIs to add named queries and documents, but we don't necessarily need to associate the documents with the queries. The Mobile clients should still be able to handle this data (correct me if I am wrong).

I'm also very surprised that Python still does not have QuerySnapshots and a bit scared to find out what this means for the Watch API :)

[wu-hui]

@wu-hui Can we just treat queries and documents as independent? The Python SDK could offer APIs to add named queries and documents, but we don't necessarily need to associate the documents with the queries. The Mobile clients should still be able to handle this data (correct me if I am wrong).

I'm also very surprised that Python still does not have QuerySnapshots and a bit scared to find out what this means for the Watch API :)

I think we might have to accept Query and run on behalf of user for Python, there is no other way to get StructuredQuery otherwise. WDYT?

[wu-hui]

LGTM with some nits on comments

[wu-hui]

LGTM!