{
  "cases": [
    {
      "args": [
        "A man, a plan, a canal: Panama"
      ],
      "expected": true,
      "got": true,
      "ok": true
    },
    {
      "args": [
        "race a car"
      ],
      "expected": false,
      "got": false,
      "ok": true
    },
    {
      "args": [
        ""
      ],
      "expected": true,
      "got": true,
      "ok": true
    }
  ],
  "error": null,
  "prompt": "Return whether the string is a palindrome, considering alphanumerics only, case-insensitively.",
  "task": "t07_is_palindrome",
  "verdict": "pass"
}