Extract pid of browser launched by Selenium WebDriver in Ruby

Question

Does anyone know how to get the process id of the browser launched by Selenium WebDriver from the Ruby script that runs the WebDriver?

Answer 1

The answer of Ben did not work for me, I had to adjust it to the following:

driver = Selenium::WebDriver.for :chrome

bridge = driver.instance_variable_get(:@bridge)
service = bridge.instance_variable_get(:@service)
process = service.instance_variable_get(:@process)
process.pid
# => 22656