anchor.diff:    case Size =:= 0 of
       true  -> <<-1:32/?INT>>;
       false -> [<<Size:32/?INT>>, B]
  -  end.
  +  end;
  +encode(records, B) ->
  +  encode(bytes, B).
   
   %% @hidden Decode prmitives.
   -spec decode(primitive_type(), binary()) -> {primitive(), binary()}.
  
positive.code:                         | int64
                          | string
                          | nullable_string
                          | bytes.
  -type struct_schema() :: [{field_name(), schema()}].
  -type schema() :: primitive_type()
                  | struct_schema()
  
negative.code:   <<Size:32/?INT, Rest/binary>> = Bin,
    copy_bytes(Size, Rest);
  decode(nullable_string, Bin) ->
    decode(string, Bin);
  decode(records, Bin) ->
    decode(bytes, Bin).
  
  %% @hidden Encode struct.
  -spec enc_struct(schema(), struct(), stack()) -> iodata().
  