code: def get_iterargs(self, item):
      
      # iterargs should always be mandatory, unless there's a good reason
      # not to, which I can't think of right now.
  
      args = self._get_aggregate_args(item, 'mandatoryArgs')
      return tuple(sorted([arg for arg in args if arg in self.iterargs]))
docs: Returns a tuple of all iterags for item, sorted by name.