iOS Key Chain issue

Hello Team,

I am creating an iOS app. I am making app for user who used my hardware device.

For this they have to register account and then login with it.

I am following documentation link with below:

From that code i am not getting the what is the function YourappnameKeys()??

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

var keys = YourappnameKeys() // what is function implementation? Here? when we do our project name keys then it show error? 
ParticleCloud.sharedInstance().OAuthClientId = keys.oAuthClientId()
ParticleCloud.sharedInstance().OAuthClientSecret = keys.oAuthSecret()

return true

We also get iOS KeyChain Disabled in console. Please do needful help urgently.

Thank you!

When we put hard code key and password then it give error Organization not found for user’s role.