anchor.diff:    ExportAttr = export_attribute(maps:keys(Exports)),
     ModuleAttr = attribute_module(Name),
   
  -  [ModuleAttr, VarsAttr1, ExportAttr | UniqueAttrs ++ Rest ++ UniqueFuns].
  +  [ModuleAttr, VarsAttr1, ExportAttr | UniqueAttrs ++ Rest ++ Funs].
   
   -spec add_vars(atom(), ['clojerl.Var':type()]) -> ok.
   add_vars(Name, Vars) ->
  
positive.code:   #module{ attrs   = Attrs
           , exports = Exports
           , vars    = Vars
           , funs    = Funs
           , rest    = Rest
           } = Module,
  
  
negative.code:                   vars    :: #{var_id() => 'clojerl.Var':type()},
                    attrs   :: [erl_syntax:syntaxTree()],
                    exports :: #{export() => true},
                    rest    :: [erl_syntax:syntaxTree()]
                  }).
  
  