The streamed response for
This message has oneof_ fields (mutually exclusive fields).
For each oneof, at most one member field can be set at the same time.
Setting any member of the oneof automatically clears all other
A document name that was requested but does not exist. In
This field is a member of oneof_ result.
The transaction that was started as part of this request.
Will only be set in the first response, and only if
was set in the request.
The time at which the document was read. This may be
monotically increasing, in this case the previous documents
in the result stream are guaranteed not to have changed
between their read_time and this one.