# RealtimeTranslationSession
## Properties
**id** | **String** | Unique identifier for the session that looks like `sess_1234567890abcdef`. |
**r#type** | **String** | The session type. Always `translation` for Realtime translation sessions. |
**expires_at** | **i32** | Expiration timestamp for the session, in seconds since epoch. |
**model** | **String** | The Realtime translation model used for this session. This field is set at session creation and cannot be changed with `session.update`. |
**audio** | [**models::RealtimeTranslationSessionAudio**](RealtimeTranslationSession_audio.md) | |
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