You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: test_deserialization.rb
    path of file: ./repos/rbvmomi/test
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
# Copyright (c) 2010-2017 VMware, Inc.  All Rights Reserved.
# SPDX-License-Identifier: MIT

require 'test_helper'

class DeserializationTest < Test::Unit::TestCase
  def setup
    conn = VIM.new(ns: 'urn:vim25', rev: '4.0')
    @deserializer = RbVmomi::Deserializer.new conn
  end

  def check str, expecte
    
  def test_array_mangling
    obj = ['foo']
    check <<~EOS, obj, 'ArrayOfString'
      <root><e>foo</e></root>
    EOS

    time_str = '2010-08-20T05:44:35.0Z'
    obj = [Time.parse(time_str)]
    check <<~EOS, obj, 'ArrayOfDateTime'
      <root><e>#{time_str}</e></root>
    EOS

    obj = [1]
    check <<~EOS, obj, 'ArrayOfAnyType'
      <root xmlns:xsi="#{VIM::NS_XSI}">
        <e xsi:type="xsd:int">1</e>
      </root>
    EOS
  end