booking/journal does not seem to work in API
Using the example code from the PHP SDK as a basis, I have tried to get a list of bookings using "booking/journal", but it does not return any data, or errors. I have used the exact same code substituting the call for "item", which returns a list of items. Any information on required parameters and how these should be formatted? Is there a working example of PHP code using "booking/journal"?