(dao) tup2 = ( cb = routine() {}, 'abc' )
[[ERROR]] in file "interactive codes":
  At line 0 : Invalid function definition --- " __main__() ";
  At line 1 : Invalid virtual machine instruction --- " SETVG:4,2,0 ";
In code snippet:
      4 :  TUPLE       :     2 ,     2 ,     4 ;     1;   ( cb = routine() {}, 'ab...'...
>>    5 :  SETVG       :     4 ,     2 ,     0 ;     1;   tup2
      6 :  RETURN      :     4 ,     1 ,     0 ;     1;   )
  At line 1 : Invalid operation on the type --- " tup2 ";
  At line 1 : Types not matching --- " 'tuple<cb:routine<=>none>,string>' for 'tuple<index:int,string>' ";