How to get the contents of a sheet/tab of a table on google docs?

Question

PHP

I'm trying to get a table from google docs using this client https://github.com/google/google-api-php-client accessed the table like this:

$url = 'https://sheets.googleapis.com/v4/spreadsheets/' . $docId . '/?key=KEY';
  $method = 'GET';
  $headers = ["Authorization" => "Bearer $accessToken", "GData-Version" => "3.0"];
  $httpClient = new GuzzleHttp\Client(['headers' => $headers]);
  $resp = $httpClient->request($method, $url);
  $body = $resp->getBody()->getContents();
  $value = json_decode($body, true);

At the output I get this thing:
joxi.ru/DmBXGOZhwxlYXA document tab options (source document) joxi.ru/Y2LjWJQS9LzoJr . I don’t understand how I can further pull out the contents of specific sheets of the document knowing their id joxi.ru/KAgKz4Bc46DxwA . The documentation is all in English, I can’t figure it out for the third hour.