Returns the accessor item label for the given element owner.
Labels mirror the corresponding Accessor subclass accessorLabel getters,
which are the authoritative source but require a full Accessor instance to
call. Use this helper when only the owner element is available.
Returns the accessor item label for the given element owner. Labels mirror the corresponding Accessor subclass
accessorLabelgetters, which are the authoritative source but require a full Accessor instance to call. Use this helper when only the owner element is available.