Does anyone know if Apple is even capable of replacing the battery, or if they replace the entire top case assembly, on 2016+ MacBook Pro models? Apparently the

Does anyone know if Apple is even capable of replacing the battery, or if they replace the entire top case assembly, on 2016+ MacBook Pro models? Apparently the Air's battery is indeed replaceable (...by Apple) but I'm not sure the Pro's is, which is incredibly wasteful, if true.