Class Precondition

A precondition on a document, used for conditional operations.

Attributes
NameDescription
boolexists
When set to ``true``, the target document must exist. When set to ``false``, the target document must not exist.
google.protobuf.timestamp_pb2.Timestampupdate_time
When set, the target document must exist and have been last updated at that time.

Inheritance

builtins.object > proto.message.Message > Precondition