code: def _make_list(x):
      """
      Make list when it is necessary.
  
      Parameters
      ----------
      x : object
          The input object to be converted into a list.
  
      Returns
      -------
      list
          If the input is already a list, it is returned unchanged.
          If the input is not a list, a new list containing the input object is returned.
      """
      if isinstance(x, list):
          return x
      return [x]
  
imports: import numpy
  import pandas
  import psutil
label_desc: Use image node_id 5 for calling a global function with example usage: _make_list(x) and returns: list, x