Is there an example of Enqueue() to read/load a file using CSVHelper?

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It seems like you can’t pass in an IFormFile object to an Enqueued task because it cannot be serialized? Is that true, or do I have to do something in my method to allow the background task to work with IFormFile?

Here’s my method:

   public async Task ImportAsync(IFormFile importFile, int userId)

This same question has been asked before but not answered:
http://hangfire.discourse.group/t/interface-or-abstract-class-and-cannot-be-instantiated/5442