anchor.diff:  %% same the example above.
   %% 
   %%         ```?COLLEC_LOC(?T("Body@@, V@=Expr@, V@"),
  -%%                        refac_api:type(V@)==variable)'''
  +%%                        api_refac:type(V@)==variable)'''
   %%
   %%</li>
   %%<li>
  
positive.code: %%                     NewArgs@@@=delete(N, Args@@@),
  %%                     ?TO_AST("F@(NewArgs@@@)")
  %%                   end,
  %%                   refac_api:fun_define_info(F@) == {M, F, A}).
  %%
  %%        delete(N, List) ->
  %%            lists:sublist(List, N-1)++ lists:nthtail(N, List). '''
  
negative.code: %% `_This@', whose value if the entire subtree that pattern matches the template.
  %%
  %%         ```?COLLECT(?T("Body@@, V@=Expr@, V@"),
  %%                     {_File@, api_refac:start_end_loc(_This@)},
  %%                     api_refac:type(V@)==variable)'''
  %%
  %%</li>
  %%<li>
  