Duplicate OpenTok classes when integrating Framework A into Framework B via CocoaPods

[MariVuji]

Body:
I have Framework A which depends on OpenTok. I include OpenTok in Framework A’s podspec and build it as an XCFramework.

Then, I integrate Framework A into Framework B via CocoaPods. In Framework B’s podspec, I only list Framework A as a dependency, not OpenTok.

When I install Framework B (with all dependencies) into a demo app, I get runtime warnings like:

objc[747]: Class OTSubscriber is implemented in both .../Frameworks/videoID.framework/videoID and .../Frameworks/onBoardingWidget.framework/onBoardingWidget. This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.

It appears OpenTok classes are duplicated because multiple frameworks include it.

Question:
What is the recommended approach to avoid duplicating OpenTok classes when multiple frameworks depend on it via CocoaPods?