Accumulate write operations to be sent in a batch. Use this over
BulkWriteBatch for lower volumes or when the order of operations
within a given batch is important.
This has the same set of methods for write operations that
xref_DocumentReference does,
e.g. xref_create.
Designation of what errors, if any, should be retried. Defaults to a system-specified policy.
timeout
float
The timeout for this request. Defaults to a system-specified value.
Returns
Type
Description
List[WriteResult, ...]
The write results corresponding to the changes committed, returned in the same order as the changes were applied to this batch. A write result contains an ``update_time`` field.