code: def validate_supported_property_type_id(property_name, property_type_id):
      
      if property_type_id not in PROPERTY_TYPE_ID_TO_NAME:
          raise AssertionError(u'Property "{}" has unsupported property type id: '
                               u'{}'.format(property_name, property_type_id))
docs: Ensure that the given property type_id is supported by the graph.