metaStateConstraint_create (/*@only@*/ metaStateSpecifier, /*@only@*/ metaStateExpression) ;
extern cstring metaStateConstraint_unparse (metaStateConstraint) /*@*/ ;
+extern /*@only@*/ metaStateConstraint metaStateConstraint_copy (metaStateConstraint) /*@*/ ;
extern void metaStateConstraint_free (/*@only@*/ metaStateConstraint) ;
# else