anchor.diff:      Error    :: term().
   to_src(MetaMod, Filename) ->
     file:write_file(Filename, to_src(MetaMod)).
  +
  +%%% ==================================================================== [ EOF ]
  
positive.code:          to_src/1, to_src/2
          ]).
  
  %%% Types.
  
  -export_type([args/0, export/0, exports/0,
                func_form/0, func_forms/0,
  
negative.code: %% TODO: write docstring
  -type result(Value, Error) :: {ok, Value} | {error, Error}.
  
  %%% ============================================================= [ Public API ]
  
  -include_lib("kernel/include/file.hrl").
  
  %% @doc Create a new meta_mod for a module with the given name.
  -spec new(Module :: module()) -> meta_mod().
  