In Expressions

[Andrey via Digitalmars-d-learn]

Hello, is there any way to using in expression like in python, 
e.g.
if 4 in [1, 3, 4]:
    do something

My code in D
if (regionAlign in [RegionAlign.top, RegionAlign.bottom]) {
   ...
}

throws an error:
incompatible types for (((cast(Widget)this).regionAlign()) in 
([top, bottom])): 'RegionAlign' and 'RegionAlign[]'