How to get the value of serializers.PrimaryKeyRelatedField in

I want you to tell me.

  1. I made a parent-child relationship serializer.
  class ParentSerializer(serializers.Serializer):
      office_id = serializers.IntegerField()
      members = membersSerializer(many=True)
  class membersSerializer(serializers.Serializer):
      member = serializers.PrimaryKeyRelatedField(member=Member.objects.all())
      name = serializers.TextField()
  1. When debugging in the serializer, member is set to a value
  <Member: Tomm>

3.However, on the caller of the serializer, member is set to None.['members'][0]
  {'member': None, 'name': 'Tommy Jone'}

4.Is there a way to refer to the value correctly?