How can I add min and max Threshold line in Google Line Charts

[AkashJain]

I have added line chart on my web-app and I need to add or highlight a constant line showing up in red for min-threshold value for this parameter and max-threshold for this parameter. I have gone the Google Line Charts Configuration Options but couldn't find any such options available in it. I wonder how anyone other also haven't ask this question on community so far. While searching a lot for solution to this problem I found one Fiddle related to this but it is adding an another line parameter and it showing tool-tip as that value, which I don't want to show on line chart. Also, adding it as another line in chart I find inefficient.

Thanks for help in advance.