%Error: t/t_assoc_meth_bad.v:13: The 1 arguments passed to .num method does not match its requiring 0 arguments
                               : ... In instance t
      v = a.num("badarg");
            ^~~
%Error: t/t_assoc_meth_bad.v:14: The 1 arguments passed to .size method does not match its requiring 0 arguments
                               : ... In instance t
      v = a.size("badarg");
            ^~~~
%Error: t/t_assoc_meth_bad.v:15: The 0 arguments passed to .exists method does not match its requiring 1 arguments
                               : ... In instance t
      v = a.exists();   
            ^~~~~~
%Error: t/t_assoc_meth_bad.v:16: The 2 arguments passed to .exists method does not match its requiring 1 arguments
                               : ... In instance t
      v = a.exists(k, "bad2");
            ^~~~~~
%Error: t/t_assoc_meth_bad.v:17: The 0 arguments passed to .first method does not match its requiring 1 arguments
                               : ... In instance t
      v = a.first();   
            ^~~~~
%Error: t/t_assoc_meth_bad.v:18: The 2 arguments passed to .next method does not match its requiring 1 arguments
                               : ... In instance t
      v = a.next(k, "bad2");   
            ^~~~
%Error: t/t_assoc_meth_bad.v:19: The 0 arguments passed to .last method does not match its requiring 1 arguments
                               : ... In instance t
      v = a.last();   
            ^~~~
%Error: t/t_assoc_meth_bad.v:20: The 2 arguments passed to .prev method does not match its requiring 1 arguments
                               : ... In instance t
      v = a.prev(k, "bad2");   
            ^~~~
%Error: t/t_assoc_meth_bad.v:21: The 2 arguments passed to .delete method does not match its requiring 0 to 1 arguments
                               : ... In instance t
      a.delete(k, "bad2");
        ^~~~~~
%Error: Exiting due to
