diff --git a/ext/opentelemetry-ext-grpc/src/opentelemetry/ext/grpc/grpcext/_interceptor.py b/ext/opentelemetry-ext-grpc/src/opentelemetry/ext/grpc/grpcext/_interceptor.py
index 0cae2cf9fd..74861913b9 100644
--- a/ext/opentelemetry-ext-grpc/src/opentelemetry/ext/grpc/grpcext/_interceptor.py
+++ b/ext/opentelemetry-ext-grpc/src/opentelemetry/ext/grpc/grpcext/_interceptor.py
@@ -230,6 +230,14 @@ def close(self):
             )
         self._channel.close()
 
+    def __enter__(self):
+        """Enters the runtime context related to the channel object."""
+        raise NotImplementedError()
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        """Exits the runtime context related to the channel object."""
+        raise NotImplementedError()
+
 
 def intercept_channel(channel, *interceptors):
     result = channel