Deauthorize the Reader SDK

import SquareReaderSDK

func deauthorizeReaderSDKIfPossible() {
    if SQRDReaderSDK.shared.canDeauthorize {
        SQRDReaderSDK.shared.deauthorize { error in

            if let deauthError = error {
                // Handle error
                print(deauthError)
            } else {
                // Deauthorization succeeded
            }
        }
    } else {
        print("Cannot deauthorize.")
    }
}