anchor.diff:  type DeleteArtworkImagePayload {
     artworkOrError: ArtworkMutationType
     clientMutationId: String
  +}
  +
  +input DeleteBankAccountInput {
  +  clientMutationId: String
  +  id: String!
  +}
  +
  +type DeleteBankAccountPayload {
  +  bankAccountOrError: BankAccountMutationType
  +  clientMutationId: String
  +  me: Me
   }
   
   input DeleteCreditCardInput {
  
positive.code:   last4: String!
  }
  
  type Bidder implements Node {
    createdAt(
      format: String
  
negative.code:   # A list of authenticated external services
    authentications: [AuthenticationType!]!
  
    # A list of the current user's bank accounts
    bankAccounts(
      after: String
      before: String
      first: Int
      last: Int
    ): BankAccountConnection
  
    # Returns a single bidder position
    bidderPosition(id: String!): BidderPositionResult
  
  