I'm responding to some actions (ConvertSymbolOrDetachInstances, InsertSymbol, etc.). Within that context, I want to get the Symbol Instance and/or Symbol Master that will be inserted or was inserted. Right now, it looks like all there is the document and action.
With ConvertSymbolOrDetachInstances, I can use .begin and then I believe I can reliably get the symbol through selected layers. But with even with InsertSymbol.finish, the selection hasn't changed yet. 😬
Am I missing something?