Is there another input field I should be using besides the File Input Field from the Display menu?
I tried several different combinations of the File Input Field from the Display menu and the File element from the Data Types menu.
It seems like I need the File Input field to get the "browse" button to appear in my popup. But then I get an incompatibility error when trying to pass the file's data through to the File element within the Service element (like the example above demonstrates.)
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