code: def get_validated_object(self, value):
          
          try:
              if self.get_field_type().check_value(value) or self.get_field_type().can_use_value(value):
                  data = self.get_field_type().use_value(value)
                  self._prepare_child(data)
                  return data
              else:
                  return None
          except AttributeError:
              return value
docs: Returns the value validated by the field_type