+If you want an hi-boot file to export a data type, but you don't want to give its constructors
+(because the constructors aren't used by the SOURCE-importing module), you can write simply:
+
+<tscreen><verb>
+__interface A 1 404 where
+__export A TA;
+1 data TA
+</verb></tscreen>
+
+(You must write all the type parameters, but leave out the '=' and everything that follows it.)
+