begin

     DBMS_AQADM.create_queue_table (
    queue_table            =>  'test_Q_TAB',
    queue_payload_type     =>  'OBJ2',
    queue_payload_type     =>  'OBJ1',
    multiple_consumers => TRUE);
    Exception
 When others then
 dbms_output.put_line('Error :'||sqlerrm);
  End;

ERROR at line 2:
ORA-06550: line 2, column 6:
PLS-00703: multiple instances of named argument in list
ORA-06550: line 2, column 6:
PL/SQL: Statement ignored