From DeviceMetadata.yaml (ratatoskr/DeviceMetadata.schema)
---
platform: mobile
channel: whatsapp
---
platform: web
channel: web
---
platform: mobile
channel: telegram
---
platform: mobile
os: android
channel: native
application: hospital
version: 1
---
platform: mobile
os: android
channel: native
application: hospital
version: 2
---
platform: mobile
os: ios
channel: native
---
platform: mobile
channel: sms
---
platform: mobile
channel: viber
---
channel: email
---
platform: mobile
channel: whatsapp
---
channel: email
is_subscribed: false