code: def _get_aria_autocomplete(self, field):
          
  
          tag_name = field.get_tag_name()
          input_type = None
          if field.has_attribute('type'):
              input_type = field.get_attribute('type').lower()
          if (
              (tag_name == 'TEXTAREA')
              or (
                  (tag_name == 'INPUT')
                  and (not (
                      (input_type == 'button')
                      or (input_type == 'submit')
                      or (input_type == 'reset')
                      or (input_type == 'image')
                      or (input_type == 'file')
                      or (input_type == 'checkbox')
                      or (input_type == 'radio')
                      or (input_type == 'hidden')
                  ))
              )
          ):
              value = None
              if field.has_attribute('autocomplete'):
                  value = field.get_attribute('autocomplete').lower()
              else:
                  form = self.parser.find(field).find_ancestors(
                      'form'
                  ).first_result()
                  if (form is None) and (field.has_attribute('form')):
                      form = self.parser.find(
                          '#' + field.get_attribute('form')
                      ).first_result()
                  if (form is not None) and (form.has_attribute('autocomplete')):
                      value = form.get_attribute('autocomplete').lower()
              if value == 'on':
                  return 'both'
              elif (
                  (field.has_attribute('list'))
                  and (self.parser.find(
                      'datalist[id="' + field.get_attribute('list') + '"]'
                  ).first_result() is not None)
              ):
                  return 'list'
              elif value == 'off':
                  return 'none'
          return None
docs: Returns the appropriate value for attribute aria-autocomplete of field.
  
          :param field: The field.
          :type field: hatemile.util.html.htmldomelement.HTMLDOMElement
          :return: The ARIA value of field.
          :rtype: str