code: def _other_base_helper(self, base):
      int_class = self.int_class
      max_digits = sys.get_int_max_str_digits()
      s = "2" * max_digits
      i = int_class(s, base)
      if base > 10:
          with self.assertRaises(ValueError):
              str(i)
      elif base < 10:
          str(i)
      with self.assertRaises(ValueError) as err:
          int_class(f"{s}1", base)
  
imports: import sys
  import time
  import unittest
  from unittest import mock
  from test import support
  from test.test_grammar import VALID_UNDERSCORE_LITERALS, INVALID_UNDERSCORE_LITERALS
label_desc: Use image node_id 12 for calling the IntStrDigitLimitsTests obj's underlying member method code with example usage: obj._other_base_helper(base) without return types