How to pass more IDs to GWP web service?

Question

Hi, 
 I'd like to use GetFeatureKeysFromRenditionIDs web service. From it's name it seems it's possible to pass more rendition ids together in one request. What is proper format how ids should be separated? Is it space, comma or something else? 
 I apologize in advance if I overlooked something already mentioned in help file, just too busy now, so it's faster to ask than to make hands-on tests. 
 With regards, 
 Jan

Jan Šlegr · Accepted Answer

I found it: The values have to be separate by comma, e.g. 3227,3228,3229. 
 
 Jan