use Binance\Client\Spot\Api\AlgoRestApi;
use Binance\Client\Spot\AlgoRestApiUtil;
$configurationBuilder = AlgoRestApiUtil::getConfigurationBuilder();
$configurationBuilder->apiKey('apiKey')
->privateKey('file:///path/to/private.key') // Provide the private key directly as a string or specify the path to a private key file (e.g., '/path/to/private_key.pem')
->privateKeyPass('myPrivateKeyPass'); // Optional: Required if the private key is encrypted
$api = new AlgoRestApi($configurationBuilder->build());