Cannot find androidmanifest.xml file in intermediate folder of unreal engine project

https://developer.oculus.com/documentation/unreal/unreal-mrc/#mixed-reality-capture-with-unreal

I was following this docs to get mixed reality capture to work on out game in unreal engine. It says to add this line-

<uses-native-library
        android:name="libOVRMrcLib.oculus.so"
        android:required="true" />

into the <application> tag inside androidmanifest.xml. But I cannot find this file in my intermediate folder as suggested in the unreal docs. I have packaged game once, but there is no such inside intermediate. If anyone has tried this meta's mixed reality capture, any help is appreciated