SelectClsStoreAttributes [Filter Service / Classification Store]

Hi All

at E-Commerce Framework docs I can see:

make sure the field collection FilteSelectClsStoreAttributes is installed and is allowed in the filter list of the filter definition class.

Even though it seems there is a typo, I cannot find any FilteSelectClsStoreAttributes in var/classes (at https://github.com/pimcore/demo/).

Does it mean I should create FilteSelectClsStoreAttributes from the scratch?
Are there any fields required?

Thanks in advance