code: def indicators_from_tag(self, indicator, tag_name, filters=None, params=None):
          
          params = params or {}
  
          for t in self.pivot_from_tag(indicator, tag_name, filters=filters, params=params):
              yield t
docs: Args:
                      indicator:
                      tag_name:
                      filters:
                      params:
  
                  Return: