class ActiveModel::ArraySerializer

def serializer_for(item)
  serializer_class = @each_serializer || Serializer.serializer_for(item, namespace: @namespace) || DefaultSerializer
  serializer_class.new(item, scope: scope, key_format: key_format, context: @context, only: @only, except: @except, polymorphic: @polymorphic, namespace: @namespace)
end