code: def update(self, **kwargs):
          
          tmos_version = self._meta_data['bigip'].tmos_version
          if LooseVersion(tmos_version) > LooseVersion('12.0.0'):
              msg = "Update() is unsupported for User on version %s. " \
                    "Utilize Modify() method instead" % tmos_version
              raise UnsupportedOperation(msg)
          else:
              self._update(**kwargs)
docs: Due to a password decryption bug
  
          we will disable update() method for 12.1.0 and up