问如何在magento中设置新select类型客户地址属性的来源？

EN

$newAttributeName = "adt";

$attribute  = array(
'type'          => 'int',
'input'         => 'select',
'label'         => 'Ad TYPE',
'visible'       => true,
'required'      => true,
'user_defined'  => true,
'searchable'    => true,
'filterable'    => true,
'comparable'    => true,
'visible_on_front' => true,
'source' =>  

$setup = new Mage_Eav_Model_Entity_Setup('core_setup');

$setup->addAttribute('customer_address', $newAttributeName, $attribute);