docs: def _init_map(self):
          """stub"""
          self.my_osid_object_form._my_map['zoneConditions'] = \
              self._zone_conditions_metadata['default_object_values'][0]
          self.my_osid_object_form._my_map['coordinateConditions'] = \
              self._coordinate_conditions_metadata['default_object_values'][0]
          self.my_osid_object_form._my_map['spatialUnitConditions'] = \
              self._spatial_unit_conditions_metadata['default_object_values'][0]