anchor.diff:  prod_isBundle(erlang_term, Product) ->
   	case lists:keyfind("isBundle", 1, Product) of
   		{"isBundle", "true"} -> true;
  +		{"isBundle", true} -> true;
   		_ -> false
   	end;
   prod_isBundle(json, Product) ->
  -	{"isBundle", Product#product.is_bundle}.
  +	case Product#product.is_bundle of
  +		undefined ->
  +			{"isBundle", ""};
  +		IsBundle ->
  +			{"isBundle", IsBundle}
  +	end.
   
   -spec prod_status(Prefix, Product) -> Result
   	when
  
positive.code: prod_price_description(erlang_term, Price) ->
  	proplists:get_value("description", Price, undefined);
  prod_price_description(json, Price) ->
  	{"description", Price#price.description}.
  
  -spec prod_price_vf(Prefix, Price) -> Result
  	when
  
negative.code: 	{_, ProdAmount} = lists:keyfind("taxIncludedAmount", 1, PriceObj),
  	ProdAmount;
  prod_price_price_amount(json, Price) ->
  	case Price#price.amount of
  		undefined ->
  			{"taxIncludedAmount", ""};
  		Amount ->
  			{"taxIncludedAmount", Price#price.amount}
  	end.
  
  -spec prod_price_price_c_code(Prefix, Price) -> Result
  	when
  