package Ġru . am ai . high load . social . service Ċ Ċ import Ġru . am ai . high load . social . domain . Following Ċ Ċ interface ĠFollow er Service Ġ{ ĊĊĠĠĠ Ġfun Ġlist Follow edBy ( login : ĠString ): ĠList < String > ĊĠĠĠ Ġfun Ġcan Follow ( current Login : ĠString , Ġuser To Follow Login : ĠString ): ĠBoolean ĊĠĠĠ Ġfun Ġfollow ( current Login : ĠString , Ġuser To Follow Login : ĠString ): ĠFollowing Ċ } Ċ