Interface ComposeObjectRequest.SourceObject.ObjectPreconditionsOrBuilder (2.50.0)

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Only perform the composition if the generation of the source object that would be used matches this value. If this value and a generation are both specified, they must be the same value or the call will fail.

optional int64 if_generation_match = 1;

Only perform the composition if the generation of the source object that would be used matches this value. If this value and a generation are both specified, they must be the same value or the call will fail.

optional int64 if_generation_match = 1;