code: def query(cls, **kwargs):
          
          params = dict(cls._default_filters)
  
          for key, value in kwargs.items():
              if key in cls._filter_parameters:
                  if isinstance(value, datetime):
                      params[key] = value.strftime('%Y-%m-%dT%H:%M:%S+00:00')
                  else:
                      params[key] = value
              else:
                  raise ValueError('\'{}\' is not a filter parameter for class \'{}\''.format(key, cls.__name__))
  
          return cls._get_iter_from_url('{}/'.format(cls._endpoint), params=params)
docs: Query multiple objects.
  
          :param kwargs: The query parameters. The key is the filter parameter and the value is the value to search for.
          :return: The list of matching objects
          :raises: A `ValueError` if at least one of the supplied parameters is not in the list of allowed parameters.