How to get totalTokenCount from Response

[ybsapp]

Hi, how get tokenCount from this code

$chat = $client->generativeModel(ModelName::GEMINI_PRO)
->startChat()
->withHistory($history);

$response = $chat->sendMessage(new TextPart('in Go'));

i need totalTokenCount from response,

If i use request manual with guzzle, i have totalTokenCount from the response

so

Is there a way to get the All token count without making a request again?