$userEngage = new \Gc\UserEngage\UserEngage('API_KEY');

$userEngage->user()->create([
  "first_name": "Amrit",
  "last_name": "G.C"
  "email": "[email protected]",
]);

$userEngage->user()->findByEmail('[email protected]');
$userEngage->user()->findByKey('7Q2VclcuKp7o');
$userEngage->user()->findById('123');
$userEngage->user()->findByPhoneNumber('9847463745');

$userEngage->user()->delete($userId);