/**
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* The `Chat` tag displays a conversational transcript and lets annotators
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* extend it with new messages during labeling. The initial transcript is
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* provided from task data via the `value` attribute.
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*
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* Optionally, the tag can request automatic replies from an LLM model. To do so,
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* set the `llm` attribute to a model in the format `<provider>/<model>`.
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*
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* Messages can be edited by clicking the edit button that appears on hover for
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* user-created messages (messages from annotation results). System messages from
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* task data cannot be edited.
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*
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* Use with the following data types: JSON array of message objects.
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*
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* Message object format (task data):
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* - `role` — speaker identifier; supported roles: `user`, `assistant`, `system`, `tool`, `developer`
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* - `content` — message text
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*
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* Example task data:
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* ```json
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* {
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* "dialog": [
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* {"role": "system", "content": "Welcome to the assistant."},
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* {"role": "user", "content": "Hello!"}
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* ]
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* }
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* ```
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*
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* @example
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* <View>
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* <Chat name="chat" value="$dialog" />
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* </View>
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*
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* @example
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* <View>
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* <!-- Allow composing both user and assistant messages; auto-reply using an LLM model -->
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* <Chat
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* name="conversation" value="$dialog"
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* messageroles="user,assistant" llm="openai/gpt-5"
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* minMessages="4" maxMessages="20"
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* editable="user,assistant"
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* />
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* </View>
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*
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* @name Chat
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* @meta_title Chat Tag for Conversational Transcripts
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* @meta_description Display and extend chat transcripts; optionally request assistant replies from an LLM. Supports message editing controls and min/max limits.
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*
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* @param {string} name Name of the element
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* @param {string} value Data field containing an array of chat messages or empty array
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* @param {string} [messageroles] Comma-separated list of roles that the user can create and send messages on behalf of. Default is "user" if the `llm` parameter is set; default is "user,assistant" if not.
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* @param {boolean|string} [editable] Whether messages are editable. Use true/false, or a comma-separated list of roles that are editable
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* @param {string|number} [minmessages] Minimum total number of messages required to submit
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* @param {string|number} [maxmessages] Maximum total number of messages allowed
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* @param {string} [llm] Model used to enable automatic assistant replies, format: `<provider>/<model>`
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*/
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export const ChatModel = {};
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