anchor.diff:  
     # A count of unread notifications.
     unreadNotificationsCount: Int!
  +}
  +
  +# Collection of fields that describe medium type, such as _Painting_. (This field
  +# is also commonly referred to as just "medium", but should not be confused with
  +# the artwork attribute called `medium`.)
  +type MediumType {
  +  # A globally unique ID.
  +  id: ID!
  +
  +  # A type-specific ID likely used as a database ID.
  +  internalID: ID!
  +
  +  # Long descriptive phrase
  +  longDescription: String
  +
  +  # Shortest form of medium type display
  +  name: String
   }
   
   # A message in a conversation.
  
positive.code:   # List of all artwork attribution classes
    artworkAttributionClasses: [AttributionClass]
  
    # A list of Artworks
    artworks(
      after: String
  
negative.code:   # Represents the "**medium type**", such as _Painting_. (This field is also
    # commonly referred to as just "medium", but should not be confused with the
    # artwork attribute called `medium`.)
    category: String @deprecated(reason: "Prefer to use `mediumType`.")
  
    # Returns the display label and detail for artwork certificate of authenticity
    certificateOfAuthenticity: ArtworkInfoRow
  