AttributeProvider
Magento\Customer\Model\Indexer\Address\AttributeProvider
What it does
This class provides EAV attributes specifically for customer address entities in Magento 2's indexing system.
It extends the base AttributeProvider to retrieve and manage customer address attributes that need to be indexed for search and filtering operations.
Developers use this when working with customer address indexing or when they need to access indexed customer address attributes programmatically.