add required imports
add required imports

senselabs/mixpanel-iphone,orta/mixpanel-osx-unofficial,senselabs/mixpanel-iphone,jlukanta/mixpanel-iphone,senselabs/mixpanel-iphone,senselabs/mixpanel-iphone,vojto/amplitude-osx,jlukanta/mixpanel-iphone,mman/mixpanel-osx-unofficial,bloom/mixpanel-osx-unofficial,tisohjung/mixpanel-iphone,senselabs/mixpanel-iphone,jlukanta/mixpanel-iphone,mman/mixpanel-osx-unofficial,senselabs/mixpanel-iphone,orta/mixpanel-osx-unofficial