src/Checkout/CheckoutComponentConfig.php
public function setData($data)
    {
        foreach ($this->getComponents() as $component) {
            $component->setData($this->order, $this->dependantData($component, $data));
        }
    }
public function setData($data)
    {
        foreach ($this->getComponents() as $component) {
            $component->setData($this->order, $this->dependantData($component, $data));
        }
    }
Set data on all components

@param array $data map of field names to data values