code: def attributes(self):
          
  
          # Deprecate
          warnings.warn(
              'Property "package.attributes" is deprecated.',
              UserWarning)
  
          # Get attributes
          attributes = set(self.to_dict().keys())
          try:
              attributes.update(self.profile.properties.keys())
          except AttributeError:
              pass
  
          return tuple(attributes)
docs: tuple: Attributes defined in the schema and the data package.