anchor.diff:    node: Sale
   }
   
  +type SaleRegistration {
  +  bidder: Bidder
  +
  +  # A globally unique ID.
  +  id: ID!
  +
  +  # A type-specific ID likely used as a database ID.
  +  internalID: ID!
  +  isRegistered: Boolean
  +  sale: Sale
  +}
  +
  +# A connection to a list of items.
  +type SaleRegistrationConnection {
  +  # A list of edges.
  +  edges: [SaleRegistrationEdge]
  +
  +  # Information to aid in pagination.
  +  pageInfo: PageInfo!
  +}
  +
  +# An edge in a connection.
  +type SaleRegistrationEdge {
  +  # A cursor for use in pagination
  +  cursor: String!
  +
  +  # The item at the end of the edge
  +  node: SaleRegistration
  +}
  +
   enum SaleSorts {
     _ID_ASC
     _ID_DESC
  
positive.code:     first: Int
      last: Int
    ): ArtworkConnection
    secondFactors(kinds: [SecondFactorKind]): [SecondFactor]
    type: String
  
  
negative.code:   editionSize: String
    externalImageUrls: [String]
    height: String
    isEdition: Boolean
    medium: String
    metric: String
    provenance: String
  