anchor.diff:  %% Function: get_field/2
   %% Purpose: Get the value at a certain field
   %% Returns: Return the string representation of the value of the specified 
  -%%          field, if it exists, otherwise returns 'false' value. If the desired
  +%%          field, if it exists, otherwise returns 'undefined' value. If the desired
   %%          value is a struct then no adaptation is performed.
   %% @end
   -spec get_field(Json::string() | tuple(), Query::string()) -> string() | atom().
  
positive.code: 	    false
      end.
  
  
  %% @doc
  %% Function: to_string/1
  %% Purpose:  Make a mochijson representation into a string
  %% Returns:  string()
  %% @end
  %% to_string(Json) when is_list(Json) ->
  %%     Json.
  
  to_string(Json) when is_tuple(Json) ->
      to_string(encode(Json));
  to_string(Json) ->
  
negative.code:     AddedId = lists:map(fun(X) -> decode(get_and_add_id(X)) end, HitsList),
      HitsAttr = set_attr(hits, AddedId),
      to_string(HitsAttr).
  
  
  %% ====================================================================
  