One entry in the chatHistory seed array passed to B.ai.call.
Text content of the message (or, for tool entries, the tool result body).
Sender role: "user", "assistant", or "tool".
Optional
Tool-call id this entry is a result for. Only meaningful when role is "tool".
One entry in the chatHistory seed array passed to B.ai.call.
Example: ```javascript B.ai.call({ chatHistory: [ { role: "user", content: "What is the resident's diet order?" }, { role: "assistant", content: "Low sodium, pureed." }, ], message: "Does that conflict with the new MAR entry?", }); ```