# RealtimeConversationItemWithReferenceContentInner
## Properties
**r#type** | Option<**String**> | The content type (`input_text`, `input_audio`, `item_reference`, `text`). | [optional]
**text** | Option<**String**> | The text content, used for `input_text` and `text` content types. | [optional]
**id** | Option<**String**> | ID of a previous conversation item to reference (for `item_reference` content types in `response.create` events). These can reference both client and server created items. | [optional]
**audio** | Option<**String**> | Base64-encoded audio bytes, used for `input_audio` content type. | [optional]
**transcript** | Option<**String**> | The transcript of the audio, used for `input_audio` content type. | [optional]
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