docs: def until(self, end, field=None):
          """
          Add the end date to query data upto that date
          sets the default end date for each query
  
          :param end: date to stop looking at the fields (to date)
          :param field: specific field for the end date in range filter
                        for the Search object
          :returns: self, which allows the method to be chainable with the other methods
          """
  
          if not field:
              field = "grimoire_creation_date"
          self.end_date = end
  
          date_dict = {field: {"lte": "{}".format(self.end_date.isoformat())}}
          self.search = self.search.filter("range", **date_dict)
          return self