code: def test_import_method(self):
      nn, flag = optional_import("torch", "1.1", name="nn")
      self.assertTrue(flag)
      print(nn.functional)
  
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 6 for calling the TestOptionalImport obj's underlying member method code with example usage: obj.test_import_method() without return types