docs: def generate_boosted_machine(self):
      """generate_boosted_machine() -> strong
  
      Creates a single strong classifier from this cascade by concatenating all strong classifiers.
  
      **Returns:**
  
      ``strong`` : :py:class:`bob.learn.boosting.BoostedMachine`
        The strong classifier as a combination of all classifiers in this cascade.
      """
      strong = bob.learn.boosting.BoostedMachine()
      for machine, index in zip(self.cascade, self.indices):
        weak = machine.weak_machines
        weights = machine.weights
        for i in range(len(weak)):
          strong.add_weak_machine(weak[i], weights[i])
  
      return strong