input: from typing import List
  
  def construct_xml_document(item_list: List[str]) -> str:
      """ Construct an XML document using Python which contains the given list of items.
      >>> construct_xml_document(['Item1', 'Item2', 'Item3'])
      '<?xml version="1.0" encoding="UTF-8"?>\n<data>\n    <item>Item1</item>\n    <item>Item2</item>\n    <item>Item3</item>\n</data>'
      """
output:     xml_content = '<?xml version="1.0" encoding="UTF-8"?>\n<data>\n'
      for item in item_list:
          xml_content += f'    <item>{item}</item>\n'
      xml_content += '</data>'
      return xml_content