code: def _ensure_iterable(x):
      """
      If the object is iterable, return the object.
      Else, return the object in a length 1 list.
      """
      return x if hasattr(x, "__iter__") else [x]
  
imports: from .compat import pd_DataFrame, pd_Series, pd_read_parquet
  import numpy
  from numpy.random import RandomState
  import blosc
  import dill
  from typing import Union, List, Dict, Optional
label_desc: Use image node_id 9 for calling a global function with example usage: _ensure_iterable(x) and returns: unknown