docstr: add overview table
  
  Args:
      data (list): list of key:value pairs to add to table row
  Returns: HTML String
code: def add_overview_table(data: list):
      """
      add overview table
  
      Args:
          data (list): list of key:value pairs to add to table row
      Returns: HTML String
      """
      doc = Doc()
      with doc.tag("table"):
          doc.attr(klass="overview_table")
          for key, item in data:
              with doc.tag("tr"):
                  doc.asis("<td><b>%s</b></td>" % key)
                  if isinstance(item, tuple):
                      joined = ",".join(str(v) for v in item)
                      doc.asis("<td>(%s)</td>" % joined)
                  else:
                      doc.asis("<td>%s</td>" % item)
      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 11 for calling the CustomHtml obj's underlying member method code with example usage: obj.add_overview_table(data) and returns: doc