<?php
namespace Stemcell\Customer\Block\Address;

use Magento\Framework\Api\AttributeInterface;

class Edit extends \Magento\Customer\Block\Address\Edit
{
    public function getCustomAttributeValue(String $attributeCode) {

        $attribute = $this->getAddress()->getCustomAttribute($attributeCode);

        return $attribute instanceof AttributeInterface? $attribute->getValue():'';
    }

    public function getRegionId()
    {
        return (int)$this->getAddress()->getRegionId();
    }
}