Symbol public: class Microsoft::ngeo::Pimpl<class Microsoft::ngeo::SignpostVoiceInfo, class Microsoft::ngeo::internal::SignpostVoiceInfoImpl> & __thiscall Microsoft::ngeo::Pimpl<class Microsoft::ngeo::SignpostVoiceInfo, class Microsoft::ngeo::internal::SignpostVoiceInfoImpl>::operator=(class Microsoft::ngeo::Pimpl<class Microsoft::ngeo::SignpostVoiceInfo, class Microsoft::ngeo::internal::SignpostVoiceInfoImpl> const &)