Count number of test cases in Execution Plan

Hello Community,

I want to count the test items in the project's execution plan that are marked as test case and print their names. Any suggestion?

function CountTestCasesRecursive(testItem) {
  let count = 0;
  if (testItem.TestCase) {  //there's no property called TestCase
    count++;
  }
  for (let i = 0; i < testItem.ItemCount; i++) {
    count += CountTestCasesRecursive(testItem.TestItem(i));
  }
  return count;
}