code: def __next__(self):
      idx = self.idx
      self.idx += 1
      return idx, next(self.it)
  
file_path: labml/client/labml/internal/monitor/mix.py
imports: from typing import Tuple, Union, Callable, Any, List, cast, Sized, TYPE_CHECKING, Iterator
label_desc: Use image node_id 3 for calling the Enumerate obj's underlying member method code with example usage: obj.__next__() and returns: idx,  next