Cannot set "list" in as property value about pypher HOT 2 CLOSED

from pypher import Pypher, __
VALUE = 123
p = Pypher()
node_gr = dict()
node_gr['name'] = 'XYZ'
p.Merge.node('ent', **node_gr)
p.SET(__.ent.__birth_place__ == __.COALESCE(__.ent.__birth_place__+
VALUE,__.ent.__birth_place__, __.List(VALUE)))

str(p) 
# MERGE (ent {`name`: $nameb5401_0}) SET ent.`birth_place` = coalesce(ent.`birth_place` + $NEO_b5401_1, ent.`birth_place`,  [$NEO_b5401_1])
# {'NEO_b5401_1': 123, 'nameb5401_0': 'XYZ'}