code: def h2olog_and_echo():
      """
      Python API test: h2o.log_and_echo(message=u'')
      """
      ret = h2o.log_and_echo("Testing h2o.log_and_echo")
      assert ret is None
  
label_desc: Use image node_id 1 for calling a global function with example usage: h2olog_and_echo() without return types