ReturnDataUsingAPI.cs

       public static List<TestCaseData>  ReturnDataUsingAPI()
        {
            var testcase = new List<TestCaseData>();
            var users = APIHelpers.GetUsersInfoAPI();
            Console.WriteLine(users);
            
           foreach (var user in users)
           {
               testcase.Add(new TestCaseData(user.first_name.ToString(), user.email.ToString()));
           }

           return testcase;
        }