Smalot\Magento\Customer\Customer::update PHP Method

Note that you need to pass only those arguments which you want to be updated.

public update ( integer $customerId, array $customerData ) : Smalot\Magento\ActionInterface
$customerId	integer
$customerData	array
return	Smalot\Magento\ActionInterface

    public function update($customerId, $customerData)
    {
        return $this->__createAction('customer.update', func_get_args());
    }

Customer