Show use of 'batch.begin()' in docstring example. (googleapis#6932)

sorced-jim · tseaver · commit db75ddaf1311 · 2018-12-17T12:09:39.000-05:00
diff --git a/datastore/google/cloud/datastore/batch.py b/datastore/google/cloud/datastore/batch.py
@@ -37,6 +37,7 @@ class Batch(object):
       >>> from google.cloud import datastore
       >>> client = datastore.Client()
       >>> batch = client.batch()
+      >>> batch.begin()
       >>> batch.put(entity1)
       >>> batch.put(entity2)
       >>> batch.delete(key3)
