Would it be against admob policy to put banner ad on a screen that has a native ad?

I have a native ad from another ad network in my screen already and I want to put a admob banner ad too, however admob policy says we shouldn’t put two ads on one screen, the confusing part for me is, are they against two ads from admob on same screen or are they against two ads on one screen regardless of the second ad’s network.

Here is the related part from admob policy

Behavioral policies
The number of ads on a single screen should not exceed one if the ad is fixed to the screen top or screen bottom. If the page scrolls, only one ad should be visible on the screen at a time, and, according to the AdSense program policies, publishers may place no more than 3 ad units on one entire page.”