anchor.diff:    # A list of Sales
     salesConnection(
       after: String
  +    auctionState: AuctionState
       before: String
       first: Int
   
  
positive.code:   recentlyViewedArtworksConnection(after: String, before: String, first: Int, last: Int): ArtworkConnection
    saleRegistrationsConnection(
      after: String
      before: String
      first: Int
  
  
negative.code:   Sold
  }
  
  enum AuctionState {
    CLOSED
    OPEN
    UPCOMING
  }
  
  # An Artsy User
  type AuctionsUser implements AuctionsNode {
    # The ID of an object
  