StateKeyInterface
Magento\Catalog\Model\Layer\StateKeyInterface
What it does
This interface defines a contract for generating unique state keys for Magento's catalog layer.
Developers implement this interface to create string identifiers that represent the current state of a category layer, which is useful for caching and tracking different filtered/sorted views of product listings.
The generated key helps Magento distinguish between different layer states to provide appropriate cached results.
Public Methods
- toString()