code: def get(cls, database, conditions=""):
          
          assert isinstance(database, Database), "database must be database.Database class instance"
          assert isinstance(conditions, string_types), "conditions must be a string"
          if conditions:
              conditions += " AND"
          field_names = ','.join(cls.fields())
          return database.select("SELECT %s FROM %s WHERE %s database='%s'" %
                                 (field_names,  cls.table_name(), conditions, database.db_name), model_class=cls)
docs: Get all data from system.parts table
          :param database: A database object to fetch data from.
          :param conditions: WHERE clause conditions. Database condition is added automatically
          :return: A list of SystemPart objects