Constructor.
string $id The service identifier:
int $invalidBehavior The behavior when the service does not exist:
Boolean $strict Sets how this reference is validated:
public function __construct($id, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE, $strict = true) {
$this->id = strtolower($id);
$this->invalidBehavior = $invalidBehavior;
$this->strict = $strict;
}