# CreateMessageRequest
## Properties
**role** | **String** | The role of the entity that is creating the message. Allowed values include: - `user`: Indicates the message is sent by an actual user and should be used in most cases to represent user-generated messages. - `assistant`: Indicates the message is generated by the assistant. Use this value to insert messages from the assistant into the conversation. |
**content** | **String** | |
**attachments** | Option<[**Vec<models::CreateMessageRequestAttachmentsInner>**](CreateMessageRequest_attachments_inner.md)> | A list of files attached to the message, and the tools they should be added to. | [optional]
**metadata** | Option<**std::collections::HashMap<String, String>**> | Set of 16 key-value pairs that can be attached to an object. This can be useful for storing additional information about the object in a structured format, and querying for objects via API or the dashboard. Keys are strings with a maximum length of 64 characters. Values are strings with a maximum length of 512 characters. | [optional]
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