code: def __next__(self):
      while True:
          n = self.get_next()
          if n is not None:
              return n
  
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 4 for calling the Mix obj's underlying member method code with example usage: obj.__next__() and returns: n