in SpotifyiOS.xcframework/ios-arm64/SpotifyiOS.framework/Headers/SPTSessionManager.h [10:15]
typedef NS_OPTIONS(NSUInteger, SPTAuthorizationOptions) {
/// Authorize using a suitable method. If Spotify is installed the app will be used instead of a web view
SPTDefaultAuthorizationOption NS_SWIFT_NAME(default) = (0),
/// Authorize using only the Spotify client. If Spotify is not installed authorization will fail.
SPTClientAuthorizationOption NS_SWIFT_NAME(clientOnly) = (1 << 0),
} NS_SWIFT_NAME(AuthorizationOptions);