anchor.diff:                   (C)  -> C
                 end,
                 Str64).
  +
  +-ifdef(SLF_COMMENT).
  +
  +
  +-endif. % SLF_LAZY
  +
  +-ifdef(TEST).
   -endif. % TEST
   
   %% @spec encode_bucket(binary()) -> string()
  
positive.code: decode_key(K64) ->
      base64:decode(dirty(K64)).
  
  -endif. % SLF_LAZY
  
  -ifdef(TEST).
  %% @spec dirty(string()) -> string()
  %% @doc replace filename-troublesome base64 characters
  %% @see clean/1
  
negative.code: -record(state, {dir}).
  -type state() :: #state{}.
  -type config() :: [{atom(), term()}].
  
  %% ===================================================================
  %% Public API
  %% ===================================================================
  
  %% @doc Return the major version of the
  %% current API.
  