get basic when conditions to work

examples/sample/src/sample.ak

@@ -27,3 +27,12 @@ pub fn eqString(a: ByteArray, b: ByteArray) {
     a == b
 }
 
+pub type Thing {
+    Some
+    None
+}
+
+pub type Other {
+    Wow
+    Yes
+}

examples/sample/src/scripts/swap.ak

@@ -16,8 +16,7 @@ pub fn spend(datum: sample.Datum, rdmr: Redeemer, ctx: spend.ScriptContext) -> B
   let b = datum.rdmr
 
   when b is {
-    sample.Buy | sample.Sell -> 1 == 1
+    sample.Buy -> 1 == 1
     sample.Sell ->  5 == 1
   }
-  
 }