• initialize() : message_callback.h , message_callback.cpp
• isRunning() : message_callback.h , message_callback.cpp
• main() : main.cpp
• sign() : robotis_foot_step_generator.cpp
• step2DArrayCallback() : message_callback.h , message_callback.cpp
• walkingCommandCallback() : message_callback.h , message_callback.cpp
• walkingModuleStatusMSGCallback() : message_callback.h , message_callback.cpp