@type t() :: %Gleanex.Client.ChatResponse{
  backendTimeMillis: integer() | nil,
  chat: Gleanex.Client.ChatMetadata.t() | nil,
  chatId: String.t() | nil,
  chatSessionTrackingToken: String.t() | nil,
  followUpPrompts: [String.t()] | nil,
  messages: [Gleanex.Client.ChatMessage.t()] | nil
}