Dictionary blocks

[Johnny Collitis]

I wrote an app in MIT App Inventor that loaded a JSON file and parsed it into a dictionary.  I've been asked to migrate it to App Inventor Java Bridge, but there's no Dictionary blocks in  the Built-in section.  In the snipping below, some of the elements I'm missing are the "create empty dictionary" and "get value at key path" blocks (dark blue) and the call "Web.1JsonTextDecodeWithDictionaries block" (purple) (I have a call "Web1.JsonTextDecode" block, but without a set of dictionary blocks I guess the "WithDictionaries" option is unavailable.

Is there an option to include that Dictionaries functionality?  I'm on a time crunch and the solution, if there is one, is not immediately obvious.