code: def test_repr(self) -> None:
      self.assertEqual(str(self.ok), "Ok(0.0)")
      self.assertEqual(str(self.err), "Err(yikes)")
  
file_path: Ax/ax/utils/common/tests/test_result.py
imports: from ax.utils.common.result import Err, Ok, Result, UnwrapError
  from ax.utils.common.testutils import TestCase
label_desc: Use image node_id 3 for calling the ResultTest obj's underlying member method code with example usage: obj.test_repr() without return types