code: def add_attribute_to_current_span(self, attribute_key, attribute_value):
          
          current_span = self.current_span()
          current_span.add_attribute(attribute_key, attribute_value)
docs: Add attribute to current span.
  
          :type attribute_key: str
          :param attribute_key: Attribute key.
  
          :type attribute_value:str
          :param attribute_value: Attribute value.