Set Header in mod-header extension using selenium +python+chrome

My problem here is I need to launch a web application which require some headers,that I am passing through mod-header extension.

Now I want to automate this process. I am able to add extension using "chrome_options.add_extension('C:/XXXXX/XXXX/XXXX/Modify-Headers.crx')",

But I am not able to pass headers. My header would look like "X-Requested-by: 1".