How To: Determine usable fields and options for darktable.gui.action()

[wpferguson]

Problem

I want to use a shortcut with darktable.gui.action(), but I don't know what fields and options are available.

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1. Go to the preferences module and locate the item you want to manipulate

2. Assign a shortcut to it

3. Select it

4. click on the fields to see what's available