$title multiple unloads of the same item are OK (UNLOAD1,SEQ=50)
variable x; parameter a;

a   = 2;
x.l = 1;

execute_unload 'gdx1',x,x.l,x.up,x.l = x.garb ,  x.l =y  ,x= x
                      a,a a=b a=a;