anchor.diff:    last4: String!
   }
   
  +# A connection to a list of items.
  +type BankAccountConnection {
  +  # A list of edges.
  +  edges: [BankAccountEdge]
  +
  +  # Information to aid in pagination.
  +  pageInfo: PageInfo!
  +}
  +
  +# An edge in a connection.
  +type BankAccountEdge {
  +  # A cursor for use in pagination
  +  cursor: String!
  +
  +  # The item at the end of the edge
  +  node: BankAccount
  +}
  +
  +type BankAccountMutationFailure {
  +  mutationError: GravityMutationError
  +}
  +
  +type BankAccountMutationSuccess {
  +  bankAccount: BankAccount
  +  bankAccountEdge: BankAccountEdge
  +}
  +
  +union BankAccountMutationType = BankAccountMutationFailure | BankAccountMutationSuccess
  +
   type Bidder implements Node {
     createdAt(
       format: String
  
positive.code: 
    # Deletes an image from an artwork in my collection
    deleteArtworkImage(input: DeleteArtworkImageInput!): DeleteArtworkImagePayload
  
    # Remove a credit card
    deleteCreditCard(input: DeleteCreditCardInput!): DeleteCreditCardPayload
  
negative.code: type DeleteArtworkImagePayload {
    artworkOrError: ArtworkMutationType
    clientMutationId: String
  }
  
  input DeleteBankAccountInput {
    clientMutationId: String
    id: String!
  }
  
  type DeleteBankAccountPayload {
    bankAccountOrError: BankAccountMutationType
    clientMutationId: String
    me: Me
  }
  
  input DeleteCreditCardInput {
  