code: def _unlist(l):
      "get element of lists of lenght 1"
      if isinstance(l, (list, tuple)):
          if len(l) == 1:
              return l[0]
      else:
          return l
  
imports: from __future__ import annotations
  from ..basics import *
  from .progress import *
  from ..text.data import TensorText
  from ..tabular.all import TabularDataLoaders, Tabular
  from .hook import total_params
  from .tracker import SaveModelCallback
  import wandb
label_desc: Use image node_id 9 for calling a global function with example usage: _unlist(l) and returns: l, l