Unlimited hop pattern

I have a edge defined with a property relType. How do i access the edge attribute in the query below.
GSQL does not allow me to alias with :e

SeedSet = filtered_start;
TargetSet = target_set;

result =
SELECT t
FROM SeedSet:s -((child_of>)*)- TargetSet:t
accum if not( t.item_type_nm == “hardware”) THEN
@@expanded_list += ( start_EDGE_VERTEX_ATTR_TUPLE(s.item_id,
s.item_type_nm,
s.description) → EDGE_VERTEX_ATTR_TUPLE(
relType,
s.item_id,
s.item_type_nm,
s.description,
t.item_id,
t.item_type_nm,
t.description
))
end
;