Class BatchCheckout (3.58.0) 

BatchCheckout(
    database,
    request_options=None,
    max_commit_delay=None,
    exclude_txn_from_change_streams=False,
    isolation_level=IsolationLevel.ISOLATION_LEVEL_UNSPECIFIED,
    read_lock_mode=ReadLockMode.READ_LOCK_MODE_UNSPECIFIED,
    **kw
)

Context manager for using a batch from a database.

Inside the context manager, checks out a session from the database, creates a batch from it, making the batch available.

Caller must not use the batch to perform API requests outside the scope of the context manager.

Parameters
Name Description
database Database

database to use
request_options RequestOptions

(Optional) Common options for the commit request. If a dict is provided, it must be of the same form as the protobuf message RequestOptions.
max_commit_delay datetime.timedelta

(Optional) The amount of latency this request is willing to incur in order to improve throughput.

Methods

__enter__

__enter__()

Begin with block.

__exit__

__exit__(exc_type, exc_val, exc_tb)

End with block.