package com.facebook.react.fabric;

public interface FabricBinding {

  void installFabric(Object jsContext, FabricUIManagerModule fabricModule);

}

package com.facebook.react.fabric;

import com.facebook.react.bridge.JavaScriptContextHolder;

public interface FabricBinding {

  void installFabric(JavaScriptContextHolder jsContext, FabricUIManagerModule fabricModule);

}

Extend installFabric method to access UIFabricModule from C++