code: def setUp(self) -> None:
      def safeDivide(a: float, b: float) -> Result[float, str]:
          if b == 0:
              return Err("yikes")
  
          return Ok(a / b)
  
      self.ok = safeDivide(0, 2)
      self.err = safeDivide(0, 0)
  
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 1 for calling the ResultTest obj's underlying member method code with example usage: obj.setUp() and returns: Ok, Err