Const ExperimentalRecords the number of messages pulled from the broker or number of messages dispatched to the application in push-based scenarios. The metric SHOULD be reported once per message delivery. For example, if receiving and processing operations are both instrumented for a single message delivery, this counter is incremented when the message is received and not reported when it is processed.
This metric is experimental and is subject to breaking changes in minor releases of @opentelemetry/semantic-conventions.
Number of messages that were delivered to the application.