Using Selenium in AWS Cloud9 (Python 3.7)

I am using AWS Cloud9 to build my Python Lambda (Python 3.7 runtime).

I want to use Selenium in AWS Cloud9 to do headless browsing (i.e., without a GUI). AWS Cloud9 instances are Linux servers and thus require some additional setup.

For Selenium, I believe I will need to install both a web browser and a driver. Because I am working on a headless environment, I probably need to use headless Chrome in combination with ChromeDriver.

I am unsure of how to add selenium chromedriver for my Cloud9 instance and eventually my AWS Lambda. Any tips would be greatly appreciated.