code: def _hcsi_null_range(*args, **kwargs):
      
      return [
          HCSINullField('Reserved{:02d}'.format(x))
          for x in range(*args, **kwargs)
      ]
docs: Builds a list of _HCSINullField with numbered "Reserved" names.
  
      Takes the same arguments as the ``range`` built-in.
  
      :returns: list[HCSINullField]