It is not easy to reverse engineer a release version of a flutter app because the tooling is not available and the flutter engine itself changes rapidly. As of now, if you are lucky, you can dump the classes and method names of a flutter app using darter or Doldrums if the app was built with a specific version of Flutter SDK. My conclusion was: I don’t want to maintain the Python code, the next time the app is updated for retesting, they could have used a newer version of Flutter SDK, with another snapshot version.