# Simplex.Messaging.Notifications.Server.Push.APNS.Internal

> APNS HTTP header constants and JSON encoding options.

**Source**: [`Notifications/Server/Push/APNS/Internal.hs`](../../../../../../../../src/Simplex/Messaging/Notifications/Server/Push/APNS/Internal.hs)

No non-obvious behavior. See source. Defines APNS header names and JSON options (`UntaggedValue` sum encoding, `camelTo2 '-'` for hyphenated field names like `content-available`, `mutable-content`).