Revert "Revert "Proto API for LB request/responses""
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 8e90f7a..60af862 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -109,6 +109,7 @@
'src/core/client_config/connector.c',
'src/core/client_config/default_initial_connect_string.c',
'src/core/client_config/initial_connect_string.c',
+ 'src/core/client_config/lb_policies/load_balancer_api.c',
'src/core/client_config/lb_policies/pick_first.c',
'src/core/client_config/lb_policies/round_robin.c',
'src/core/client_config/lb_policy.c',
@@ -172,6 +173,7 @@
'src/core/json/json_reader.c',
'src/core/json/json_string.c',
'src/core/json/json_writer.c',
+ 'src/core/proto/grpc/lb/v0/load_balancer.pb.c',
'src/core/surface/alarm.c',
'src/core/surface/api_trace.c',
'src/core/surface/byte_buffer.c',
@@ -226,6 +228,9 @@
'src/core/census/operation.c',
'src/core/census/placeholders.c',
'src/core/census/tracing.c',
+ 'third_party/nanopb/pb_common.c',
+ 'third_party/nanopb/pb_decode.c',
+ 'third_party/nanopb/pb_encode.c',
'src/boringssl/err_data.c',
'third_party/boringssl/crypto/aes/aes.c',
'third_party/boringssl/crypto/aes/mode_wrappers.c',