Hi Max,
I intended bridge module not a BridgeHelper , And I renamed the bridge module with another name and renamed all the header file and .cc file with new name
mean
├── bindings
│ ├── callbacks_list.py
│ ├── callbacks_list.pyc
│ ├── modulegen__gcc_ILP32.py
│ ├── modulegen__gcc_LP64.py
│ └── modulegen__gcc_LP64.pyc
├── doc
│ └── bridge.rst
├── examples
│ ├── csma-bridge.cc
│ ├── csma-bridge-one-hop.cc
│ ├── csma-bridge.py
│ └── wscript
├── helper
│ ├── bridge-helper.cc
│ └── bridge-helper.h
├── model
│ ├── bridge-channel.cc
│ ├── bridge-channel.h
│ ├── bridge-net-device.cc
│ └── bridge-net-device.h
├── test
│ └── examples-to-run.py
└── wscript
All the helper class name and all the model name and where ever it refers also changed with new name for example bridge-helper.cc to newname-bridge-helper.cc
I also changed the class name inside modulegen__gcc_LP64.py with new class names . And it works fine for me.