public static DockTo GetTo([NotNull] BlockElement @this) => @this.GetValueSafe(ToProperty);
public static int?GetRight([NotNull] BlockElement @this) => @this.GetValueSafe(RightProperty);
public static int?GetBottom([NotNull] BlockElement @this) => @this.GetValueSafe(BottomProperty);
public static int?GetTop([NotNull] BlockElement @this) => @this.GetValueSafe(TopProperty);