docs: def patched_model():
      """Context Manager that safely patches django.db.Model.__reduce__()."""
  
      patched = ('__reduce__', '__getstate__', '__setstate__')
      originals = {}
      for patch in patched:
          try:
              originals[patch] = getattr(models.Model, patch)
          except:
              pass
  
      try:
          # Patch various parts of the model
          models.Model.__reduce__ = _reduce
          try:
              del models.Model.__getstate__
          except:
              pass
          try:
              del models.Model.__setstate__
          except:  # pragma: no cover
              pass
  
          yield
  
      finally:
          # Restore the model
          for patch in patched:
              try:
                  setattr(models.Model, patch, originals[patch])
              except KeyError:
                  try:
                      delattr(models.Model, patch)
                  except AttributeError:
                      pass