anchor.diff:  
     # A list of Users
     usersConnection(after: String, before: String, first: Int, ids: [String], last: Int): UserConnection
  -  viewingRoomsConnection(after: String, first: Int, statuses: [ViewingRoomStatusEnum!]): ViewingRoomConnection
  +  viewingRoomsConnection(after: String, first: Int, statuses: [ViewingRoomStatusEnum!]): ViewingRoomsConnection
   }
   
   # An artwork viewing room
  
positive.code:   # List enabled Two-Factor Authentication factors
    _unused_gravity_secondFactors(kinds: [SecondFactorKind!] = [app, sms, backup]): [SecondFactor!]!
  
    # Find PartnerStats
    analyticsPartnerStats(partnerId: String!): AnalyticsPartnerStats
  
  
negative.code:   # A slug ID.
    slug: ID!
    type: String
    viewingRoomsConnection(
      after: String
      first: Int
      published: Boolean = true
      statuses: [ViewingRoomStatusEnum!]
    ): ViewingRoomsConnection
  
    # The gallery partner's web address
    website: String
  