anchor.diff:  
   union OrderParty = Partner | User
   
  +type Page {
  +  content(format: Format): String
  +
  +  # A globally unique ID.
  +  id: ID!
  +
  +  # A type-specific ID.
  +  internalID: ID!
  +  name: String!
  +  published: Boolean!
  +}
  +
   type PageCursor {
     # first cursor on the page
     cursor: String!
  
positive.code:     key: String!
      public: Boolean = true
    ): [OrderedSet]
  
    # A Partner
    partner(
  
negative.code:     key: String!
      public: Boolean = true
    ): [OrderedSet]
    page(id: ID!): Page!
  
    # A Partner
    partner(
  