code: def load_fixtures(db, fixtures):
      
      conn = db.engine.connect()
      metadata = db.metadata
  
      for fixture in fixtures:
          if 'model' in fixture:
              module_name, class_name = fixture['model'].rsplit('.', 1)
              module = importlib.import_module(module_name)
              model = getattr(module, class_name)
              for fields in fixture['records']:
                  obj = model(**fields)
                  db.session.add(obj)
              db.session.commit()
          elif 'table' in fixture:
              table = Table(fixture['table'], metadata)
              conn.execute(table.insert(), fixture['records'])
          else:
              raise ValueError("Fixture missing a 'model' or 'table' field: {0}".format(json.dumps(fixture)))
docs: Loads the given fixtures into the database.