ho_default_func_3.m:037: In clause for `baz(in, out)':
ho_default_func_3.m:037:   mode error in conjunction. The next 2 error messages
ho_default_func_3.m:037:   indicate possible causes of this error.
ho_default_func_3.m:037: 
ho_default_func_3.m:037:   In clause for `baz(in, out)':
ho_default_func_3.m:037:   in call to function `univ.univ'/1:
ho_default_func_3.m:037:   mode error: argument `V_7' and the return value
ho_default_func_3.m:037:   `V_6' have the following insts:
ho_default_func_3.m:037:     /* unique */ (func(di) = uo is det),
ho_default_func_3.m:037:     free
ho_default_func_3.m:037:   which does not match any of the modes for function
ho_default_func_3.m:037:   `univ.univ'/1.
ho_default_func_3.m:037: 
ho_default_func_3.m:037:   In clause for `baz(in, out)':
ho_default_func_3.m:037:   in call to predicate `univ.univ_to_type'/2:
ho_default_func_3.m:037:   mode error: arguments `V_6, Y0' have the following
ho_default_func_3.m:037:   insts:
ho_default_func_3.m:037:     free,
ho_default_func_3.m:037:     free
ho_default_func_3.m:037:   which does not match any of the modes for predicate
ho_default_func_3.m:037:   `univ.univ_to_type'/2.