Merge pull request googleapis#137 from jgeewax/koss-collection-5

Add Query to documentation.

Author: mckoss

docs/firestore-collection.rst

@@ -3,3 +3,7 @@ Firestore Collections
 .. autoclass:: google.cloud.firestore.CollectionRef
   :members:
   :show-inheritance:
+
+.. autoclass:: google.cloud.firestore.Query
+  :members:
+  :show-inheritance:

firestore/google/cloud/firestore/__init__.py

@@ -16,13 +16,15 @@
 
 from google.cloud.firestore.client import Client
 from google.cloud.firestore.collection import CollectionRef
-from google.cloud.firestore.document import DocumentResult
+from google.cloud.firestore.collection import Query
 from google.cloud.firestore.document import DocumentRef
+from google.cloud.firestore.document import DocumentResult
 
 
 __all__ = [
     'Client',
     'DocumentResult',
     'DocumentRef',
     'CollectionRef',
+    'Query',
 ]