Feature request: Add basic client side load balancing for gRPC

There is no client side load balancing for gRPC module.
All the requests land on one instance rather than distributing the load between multiple instances.
Is it possible to add basic load balancing on client side e.g. round_robin or other pattern so request load can be distributed among instances?

Start by locating the gRPC client module and reading how requests are currently sent to service instances. Investigate the supported client configuration and existing tests or examples for a suitable load-balancing entry point. Done means requests can use a basic policy such as round_robin and distribute load across multiple instances.

Written by the indexing model from the issue text.