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-rw-r--r--src/core/lib/channel/context.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/core/lib/channel/context.h b/src/core/lib/channel/context.h
index 071c5f695c..6c931ad28a 100644
--- a/src/core/lib/channel/context.h
+++ b/src/core/lib/channel/context.h
@@ -47,6 +47,9 @@ typedef enum {
/// Value is a \a census_context.
GRPC_CONTEXT_TRACING,
+ /// Reserved for traffic_class_context.
+ GRPC_CONTEXT_TRAFFIC,
+
GRPC_CONTEXT_COUNT
} grpc_context_index;