AXPropertyName

enum class AXPropertyName (source)

Values of AXProperty name:

from 'busy' to 'roledescription': states which apply to every AX node
from 'live' to 'root': attributes which apply to nodes in live regions
from 'autocomplete' to 'valuetext': attributes which apply to widgets
from 'checked' to 'selected': states which apply to widgets
from 'activedescendant' to 'owns' - relationships between elements other than parent/child/sibling.

Link
Accessibility#AXPropertyName type documentation.