Snapshot(mapping=None, *, ignore_unknown_fields=False, **kwargs)A snapshot resource. Snapshots are used in
Seek <https://cloud.google.com/pubsub/docs/replay-overview>__
operations, which allow you to manage message acknowledgments in
bulk. That is, you can set the acknowledgment state of messages in
an existing subscription to the state captured by a snapshot.
| Attributes | |
|---|---|
| Name | Description | 
| name
   :noindex: | strOptional. The name of the snapshot. | 
| topic
   :noindex: | strOptional. The name of the topic from which this snapshot is retaining messages. | 
| expire_time
   :noindex: | google.protobuf.timestamp_pb2.TimestampOptional. The snapshot is guaranteed to exist up until this time. A newly-created snapshot expires no later than 7 days from the time of its creation. Its exact lifetime is determined at creation by the existing backlog in the source subscription. Specifically, the lifetime of the snapshot is 7 days - (age of oldest unacked message in the subscription).
   For example, consider a subscription whose oldest unacked
   message is 3 days old. If a snapshot is created from this
   subscription, the snapshot -- which will always capture this
   3-day-old backlog as long as the snapshot exists -- will
   expire in 4 days. The service will refuse to create a
   snapshot that would expire in less than 1 hour after
   creation. | 
| labels
   :noindex: | MutableMapping[str, str]Optional. See [Creating and managing labels] (https://cloud.google.com/pubsub/docs/labels). | 
Classes
LabelsEntry
LabelsEntry(mapping=None, *, ignore_unknown_fields=False, **kwargs)The abstract base class for a message.
| Parameters | |
|---|---|
| Name | Description | 
| kwargs | dictKeys and values corresponding to the fields of the message. | 
| mapping | Union[dict, A dictionary or message to be used to determine the values for this message. | 
| ignore_unknown_fields | Optional(bool)If True, do not raise errors for unknown fields. Only applied if  |