public DummyLinksWithNullValueHandling(SelfLink self, [NotNull] ThisLink @this, ThatLink that, IReadOnlyList <HalLink> those) : base(self)
 {
     This  = @this;
     That  = that;
     Those = those;
 }
 public DummyLinks(SelfLink self, ThisLink @this, ThatLink that, IReadOnlyList <HalLink> those) : base(self)
 {
     This  = @this;
     That  = that;
     Those = those;
 }
 private DummyLinksWithPrivateConstructor(SelfLink self, ThisLink @this, ThatLink that, IReadOnlyList <HalLink> those) : base(self)
 {
     This  = @this;
     That  = that;
     Those = those;
 }