'Advertisement' does not contain a definition for 'Banner'

On Unity 2019.2.13f1, I installed Unity Ads from the Package Manager and enabled the ads through the Services tab. I followed the example scripts, but it will not compile and highlights the method “Advertisement.Banner.Show(placementId);” saying the Advertisement does not contain a definition for Banner.

As far as I know, I followed the tutorials and examples, yet the end result does not work. I figured I would try just Advertisement.Show(placementId) since the placement has been configured as a Banner in the Placement Settings, but instead of a banner it displayed a fullscreen ad. Seems like I need that Banner definition working, but I haven’t been able to find anyone solving this specific problem before.

Does anyone know what I am missing or what could be wrong here?

Can you confirm what version of the ads package you have installed as I was able to quickly verify that I could show a banner in 2019.2.0f1 using Ads package 3.4.0 installed from package manager.