code: def get(self, alias, target=None):
          
          for target_part in reversed(list(self._get_targets(target))):
              options = self._get(target_part, alias)
              if options:
                  return options
docs: Get a dictionary of aliased options.
  
          :param alias: The name of the aliased options.
          :param target: Get alias for this specific target (optional).
  
          If no matching alias is found, returns ``None``.