Update quantum_run_stream to not prefetch first result #5024
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Prefetching doesn't work because the service does not send any messages until after the user has sent at least one request. It seems prefetching was added in gapic 1.17.0 and broke some other streaming APIs such as pubsub (googleapis/python-api-core#25). This changes follows the official workaround, which is unfortunately pretty hacky (googleapis/python-api-core#30).
@wcourtney, @verult