code: def get(self, *args, **kwargs):
          
          if args or kwargs:
              return self.filter(*args, **kwargs).get()
  
          self._execute_query()
          if len(self._result_cache) == 0:
              raise self.model.DoesNotExist
          elif len(self._result_cache) > 1:
              raise self.model.MultipleObjectsReturned(
                      '{} objects found'.format(len(self._result_cache)))
          else:
              return self[0]
docs: Returns a single instance matching this query, optionally with additional filter kwargs.
  
          A DoesNotExistError will be raised if there are no rows matching the query
          A MultipleObjectsFoundError will be raised if there is more than one row matching the queyr