anchor.diff:                  {ok, DjangoParseTree, CheckSum} ->
                       {{BodyAst, BodyAstInfo}, TreeWalker1} = with_dependency({CustomTagFile, CheckSum}, 
                           body_ast(DjangoParseTree, Context, TreeWalker)),
  -                    Clause = erl_syntax:clause([erl_syntax:string(Tag), erl_syntax:variable("Variables"), erl_syntax:variable("TranslationFun")],
  +                    Clause = erl_syntax:clause([erl_syntax:string(Tag), erl_syntax:variable("Variables"), options_ast()],
                                   none, [BodyAst]),
                       custom_tags_clauses_ast1(CustomTags, [Tag|ExcludeTags], [Clause|ClauseAcc], merge_info(BodyAstInfo, InfoAcc), 
                           Context, TreeWalker1);
  
positive.code:     {RenderAst, RenderInfo} = case Context#dtl_context.custom_tags_module of
          none ->
              {erl_syntax:application(none, erl_syntax:atom(render_tag),
                  [erl_syntax:string(Name), erl_syntax:list(InterpretedArgs), erl_syntax:variable("TranslationFun")]),
              AstInfo#ast_info{custom_tags = [Name]}};
          Module ->
              {erl_syntax:application(erl_syntax:atom(Module), erl_syntax:atom(Name),
                  [erl_syntax:list(InterpretedArgs), erl_syntax:variable("TranslationFun")]), AstInfo}
      end,
      {{RenderAst, RenderInfo}, TreeWalker}.
  
  call_ast(Module, TreeWalkerAcc) ->
      call_ast(Module, erl_syntax:variable("Variables"), #ast_info{}, TreeWalkerAcc).
  
negative.code:     {InterpretedArgs, AstInfo} = lists:mapfoldl(fun
              ({{identifier, _, Key}, {string_literal, _, Value}}, AstInfoAcc) ->
                  {erl_syntax:tuple([erl_syntax:string(Key), erl_syntax:string(unescape_string_literal(Value))]), AstInfoAcc};
              ({{identifier, _, Key}, {trans, StringLiteral}}, AstInfoAcc) ->
                  {{TransAst, TransAstInfo}, _} = translated_ast(StringLiteral, Context, TreeWalker),
                  {erl_syntax:tuple([erl_syntax:string(Key), TransAst]), merge_info(TransAstInfo, AstInfoAcc)};
              ({{identifier, _, Key}, Value}, AstInfoAcc) ->
                  {AST, VarName} = resolve_variable_ast(Value, Context),
                  {erl_syntax:tuple([erl_syntax:string(Key), format(AST,Context, TreeWalker)]), merge_info(#ast_info{var_names=[VarName]}, AstInfoAcc)}
  