* re-implement README gRPC client example to be a self-contained script
- fix a syntax error
- fix a usage error
* asyncio.run() was added in 3.7
- this lib targets >= 3.6
* Apply suggestions from code review
Optimized imports, store RPC call result before printing
Co-authored-by: Arun Babu Neelicattu <arun.neelicattu@gmail.com>
* add entry-point check to example
Co-authored-by: Arun Babu Neelicattu <arun.neelicattu@gmail.com>
