I am using `gem 'fcm'` for sending push notifications.
I am able to send the notifications on android but I am not receiving it in IOS.
I am using the following code:

```
fcm = FCM.new('my key', timeout: TIMEOUT)
options = {
    data: {
        title: 'My title',
        message: 'My Message',
        event: 'message'

    },
    priority: 'high'
}

response = fcm.send(['fcm registered device id of ios'], options)

```

I am able to receive the notification from Firebase console on my ios devise.