code: def test_import_wrong_number(self):
      my_module, flag = optional_import("torch", "42")
      with self.assertRaisesRegex(OptionalImportError, "version"):
          my_module.nn
      self.assertFalse(flag)
      with self.assertRaisesRegex(OptionalImportError, "version"):
          my_module.randint(1, 2, (1, 2))
      with self.assertRaisesRegex(ValueError, "invalid literal"):
          my_module, flag = optional_import(
              "torch", "test"
          )  # version should be number.number
          my_module.nn
          self.assertTrue(flag)
          print(my_module.randint(1, 2, (1, 2)))
  
file_path: MONAI/tests/test_optional_import.py
imports: from __future__ import annotations
  import unittest
  from monai.utils import OptionalImportError, exact_version, optional_import
label_desc: Use image node_id 3 for calling the TestOptionalImport obj's underlying member method code with example usage: obj.test_import_wrong_number() without return types