def __init__(self, client, transaction_id='TRANSACTION'):
from google.cloud.datastore.batch import Batch
from google.cloud.datastore.transaction import Transaction
self._client = client
xact = self._transaction = Transaction(client)
xact._id = transaction_id
Batch.begin(xact)
def transaction(self, **kwargs):
"""Proxy to :class:`google.cloud.datastore.transaction.Transaction`.
:type kwargs: dict
:param kwargs: Keyword arguments to be passed in.
"""
return Transaction(self, **kwargs)
def transaction(self):
"""Proxy to :class:`google.cloud.datastore.transaction.Transaction`."""
return Transaction(self)