@type t() :: %ExBifrost.Model.CohereMessage{
  content: ExBifrost.Model.CohereMessageContent.t() | nil,
  role: String.t(),
  tool_call_id: String.t() | nil,
  tool_calls:
    [ExBifrost.Model.CohereChatV2200ResponseDeltaMessageToolCallsOneOf.t()]
    | nil,
  tool_plan: String.t() | nil
}