feedbacks.readunviewed, viewed, expired, rated, reviewed,
responded). The default is to return all feedback records regardless of
state.ISO8601-format)1.101100unviewed - User has an opportunity to leave feedback for a purchase they
have made, but has not been displayed the feedback prompt yet.viewed - User viewed the opportunity to leave feedback, but they have not
left a NPS or review yet.expired - User did not leave a NPS or review before the feedback expiredrated - User has left a net promoter scorereviewed - User has left a reviewresponded - Merchant has responded to the user's feedback