Leslie Nielsen explains how to declare variable types in squeak.
"surely you can't be serious?!" " "of course i'm serious... And stop calling me Shirley". --Leslie Nielsen -airplane-
The way you declare a serious variable type in squeak is to write an instance message for the class Joking that does nothing when asked #surelyYouCantBeSerious and maybe another for the class Serious that tells you to stop calling it shirley. ;-)
Then in any method needing a type check you just ask the variable the question and proceed. QED.
Yours in curiosity and service, --Jerome Peace
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