Hello.
I have a strategy draft https://goo.gl/dEPn7J with custom action based on sample action file(ActionMessageBox).
Everything works fine but I can't figure out how to get action inputs names. It seems GetInputs method used for this, but I can't
get it work. 
It accepts string action name, but every time I get System.ArgumentException with Message "This action does not have an input named ExportToFile".

What parameter should I pass to it to get list of inputs?

Thank you.