code: def make_iterable_ntimes(val, n):
      
      if cbook.iterable(val) and not is_string(val):
          if len(val) != n:
              raise PlotnineError(
                  '`val` is an iterable of length not equal to n.')
          return val
      return [val] * n
docs: Return [*val*, *val*, ...] if *val* is not iterable.
  
      If *val* is an iterable of length n, it is returned as is.
      Strings are not recognized as iterables
  
      Raises an exception if *val* is an iterable but has length
      not equal to n