nodes: 0, module; 1, function_definition; 2, function_name:copy; 3, parameters; 4, block; 5, identifier:self; 6, expression_statement; 7, return_statement; 8, comment:"""Return a shallow copy of the sorted dictionary."""; 9, call; 10, attribute; 11, argument_list; 12, identifier:self; 13, identifier:__class__; 14, attribute; 15, attribute; 16, call; 17, identifier:self; 18, identifier:_key; 19, identifier:self; 20, identifier:_load; 21, attribute; 22, argument_list; 23, identifier:self; 24, identifier:_iteritems
code: def copy(self):
          """Return a shallow copy of the sorted dictionary."""
          return self.__class__(self._key, self._load, self._iteritems())