code: def radio_presets(self) -> typing.Iterator['FlyingUnit.RadioPresets']:
          
          if self.skill == 'Client' and self.unit_type in FlyingUnit.RadioPresets.radio_enum.keys():
              for k in self._section_unit['Radio']:
                  yield FlyingUnit.RadioPresets(self, k)
          else:
              raise TypeError('unit #{}: {}'.format(self.unit_id, self.unit_name))
docs: Returns: radio presets for this unit