public void AndWith4ArgsReturnsCorrectValue(
     bool repeat, bool last, bool expected)
 {
     CombineOperators.And(repeat, repeat, repeat, last)
     .Should().Be(expected);
 }
 public void AndWith2ArgsReturnsCorrectValue(
     bool arg1, bool arg2, bool expected)
 {
     CombineOperators.And(arg1, arg2).Should().Be(expected);
 }