$quickbooks = new ActiveCollab\Quickbooks\Quickbooks([
'identifier' => 'example-consumer-key',
'secret' => 'example-consumer-key-secret',
'callback_uri' => 'http://example.com'
]);
$sandbox = new ActiveCollab\Quickbooks\Sandbox(
'example-consumer-key',
'example-consumer-key-secret',
'example-access-token',
'example-access-token-secret',
'example-realmId'
);
$dataService = new ActiveCollab\Quickbooks\DataService(
'example-consumer-key',
'example-consumer-key-secret',
'example-access-token',
'example-access-token-secret',
'example-realmId'
);