anchor.diff:  
     # Structured object used to build filtered artworks query
     query: MarketingCollectionQuery!
  -  createdAt: DateTime!
  -  updatedAt: DateTime!
  +  createdAt: MarketingDateTime!
  +  updatedAt: MarketingDateTime!
     artworks(
       acquireable: Boolean
       aggregation_partner_cities: [String]
  
positive.code:   # Find partners by ID
    _unused_gravity_partners(ids: [ID]!): [DoNotUseThisPartner]
    marketingCollections: [MarketingCollection!]!
    marketingCollection(slug: String!): MarketingCollection
  }
  
  
negative.code:   tag_id: String
    keyword: String
  }
  
  scalar MarketingDateTime
  
  type Me implements Node {
    # A globally unique ID.
  