code: def values(self, *fields):
          
          if not fields:
              fields = self._get_simple_fields()
  
          fields = self._coerce_fields_parameters(fields)
  
          self._instances = False
          self._values = {'fields': fields, 'mode': 'dicts'}
          return self
docs: Ask the collection to return a list of dict of given fields for each
          instance found in the collection.
          If no fields are given, all "simple value" fields are used.