 File "formatter_example.py", line 34, in print_stack1
      33 | def print_stack1(formatter):
-->   34 |     print_stack2(formatter)
               ^^^^^^^^^^^^^^^^^^^^^^^
 File "formatter_example.py", line 38, in print_stack2
      37 | def print_stack2(formatter):
-->   38 |     formatter.print_stack()
               ^^^^^^^^^^^^^^^^^^^^^^^
