parameters: (self, instance, value)
docstring: Set an object's tags.
docstring_summary: Set an object's tags.
docstring_tokens: Set an object s tags .
function: def __set__(self, instance, value):
          """
          Set an object's tags.
          """
          if instance is None:
              raise AttributeError(_('%s can only be set on instances.') % self.name)
          if settings.FORCE_LOWERCASE_TAGS and value is not None:
              value = value.lower()
          self._set_instance_tag_cache(instance, value)
function_tokens: def __set__ ( self , instance , value ) : if instance is None : raise AttributeError ( _ ( '%s can only be set on instances.' ) % self . name ) if settings . FORCE_LOWERCASE_TAGS and value is not None : value = value . lower ( ) self . _set_instance_tag_cache ( instance , value )