Transaction and AsyncTransaction inherit from Batch, which includes fields to store write_results and commit_time after commit is complete, but they are currently not populated for Transaction types. This PR addresses this by populating the fields with the commit response
TransactionandAsyncTransactioninherit fromBatch, which includes fields to storewrite_resultsandcommit_timeafter commit is complete, but they are currently not populated forTransactiontypes. This PR addresses this by populating the fields with the commit responseFixes https://github.com/googleapis/python-firestore/issues/927