Use call context to propagare LR costs
diff --git a/grpc.def b/grpc.def
index 5ef59ab..e387c8b 100644
--- a/grpc.def
+++ b/grpc.def
@@ -69,6 +69,7 @@
     grpc_channel_create_registered_call
     grpc_call_start_batch
     grpc_call_get_peer
+    grpc_call_set_load_reporting_cost_context
     grpc_census_call_set_context
     grpc_census_call_get_context
     grpc_channel_get_target