10       var error: NSError?  in definition()  variable
11 …: Bool = context.canEvaluatePolicy(LAPolicy.deviceOwnerAuthenticationWithBiometrics, error: &error)  in definition()
12       let isAvailable: Bool = isSupported || error?.code != LAError.biometryNotAvailable.rawValue  in definition()
19       var error: NSError?  in definition()  variable
20 …: Bool = context.canEvaluatePolicy(LAPolicy.deviceOwnerAuthenticationWithBiometrics, error: &error)  in definition()
21       let isEnrolled: Bool = isSupported && error == nil  in definition()
42       var error: NSError?  in definition()  variable
46 …ationSupported: Bool = context.canEvaluatePolicy(LAPolicy.deviceOwnerAuthentication, error: &error)  in definition()
47       if isAuthenticationSupported && error == nil {  in definition()
51 …: Bool = context.canEvaluatePolicy(LAPolicy.deviceOwnerAuthenticationWithBiometrics, error: &error)  in definition()
53       if isBiometricsSupported && error == nil {  in definition()
102       context.evaluatePolicy(policyForAuth, localizedReason: reason ?? "") { success, error in  in definition()
105         if let error = error as? NSError {  in definition()  variable
106           err = convertErrorCode(error: error)  in definition()
121   context.canEvaluatePolicy(LAPolicy.deviceOwnerAuthenticationWithBiometrics, error: nil)  in isFaceIdDevice()
128   context.canEvaluatePolicy(LAPolicy.deviceOwnerAuthenticationWithBiometrics, error: nil)  in isTouchIdDevice()
133 func convertErrorCode(error: NSError) -> String {  in convertErrorCode()
134   switch error.code {  in convertErrorCode()