Merge pull request #863 from Ovizro/master

add a pyi file generation for tinode_grpc module

pbx/py-generate.sh

@@ -10,6 +10,6 @@ done
 python="python${v}"
 
 # This generates python gRPC bindings for Tinode.
-$python -m grpc_tools.protoc -I../pbx --python_out=../py_grpc/tinode_grpc --grpc_python_out=../py_grpc/tinode_grpc ../pbx/model.proto
+$python -m grpc_tools.protoc -I../pbx --python_out=../py_grpc/tinode_grpc --grpc_python_out=../py_grpc/tinode_grpc --pyi_out=../py_grpc/tinode_grpc ../pbx/model.proto
 # Bindings are incompatible with Python packaging system. This is a fix.
 $python py_fix.py