title: Python gRPC health check
body: <p>I'm trying to learn gRPC and implemented the same code as in the <a href="https://grpc.io/docs/tutorials/basic/python/" rel="nofollow noreferrer">tutorial</a>. Wondering how to add gRPC health check to it.</p>
  
  <p>Stumbled upon <a href="https://github.com/grpc/grpc/blob/master/src/python/grpcio_health_checking/grpc_health/v1/health.py" rel="nofollow noreferrer">this</a>, but clueless on how to write a gRPC health check.</p>