package Ġru . mail . pol is . dao Ċ Ċ enum Ġclass ĠCollections ( val Ġcollection Name : ĠString ) Ġ{ ĊĠĠĠ ĠPER SON (" person "), ĊĠĠĠ ĠPRO POSE (" ap artment _ pro pose "), ĊĠĠĠ ĠA PART MENT (" ap artment "), ĊĠĠĠ ĠUSER (" user "); Ċ } Ċ