configure the consumer partition assignment strategy

[rdwr-varshithp]

I’m using confluent-kafka-go (librdkafka-based Go client) and trying to configure
the consumer partition assignment strategy.

When I set:

"partition.assignment.strategy": "sticky"
the consumer fails at startup with:

panic: Unsupported partition.assignment.strategy: sticky
However, I can see that:

range - defeault
cooperative-sticky works (incremental/cooperative rebalancing)
My questions are:

Is the eager StickyAssignor (sticky) intentionally NOT supported in
confluent-kafka-go / librdkafka?
If yes, is cooperative-sticky the only sticky-based assignor available in Go?
Is there any plan to add support for eager sticky in the future, or should
users rely on range for eager rebalancing?