docstr: add unordered list Key:Value pair list
  
  Args:
      items (list): list of key:value pairs to add to unordered list
  Returns: HTML String
code: def add_unordered_kay_value_pair_list(items: list):
      """
      add unordered list Key:Value pair list
  
      Args:
          items (list): list of key:value pairs to add to unordered list
      Returns: HTML String
      """
      doc = Doc()
      with doc.tag("ul"):
          for key, value in items:
              with doc.tag("li"):
                  doc.asis("%s: <b>%s</b>" % (key, value))
      return doc.getvalue()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import datetime
  from yattag import Doc, indent
label_desc: Use image node_id 10 for calling the CustomHtml obj's underlying member method code with example usage: obj.add_unordered_kay_value_pair_list(items) and returns: doc