anchor.diff:  union MoneyOrErrorUnion = Error
   
   type Mutation {
  +  acceptPartnerAgreement(
  +    input: AcceptPartnerAgreementInput!
  +  ): AcceptPartnerAgreementPayload
     addAssetToConsignmentSubmission(
       input: AddAssetToConsignmentSubmissionInput!
     ): AddAssetToConsignmentSubmissionPayload
  
positive.code:     term: String!
    ): [DoNotUseThisPartner!]
  
    # Find partners by IDs
    _unused_gravity_partners(ids: [ID!]!): [DoNotUseThisPartner!]
  
  
negative.code:   # The gallery partner's web address
    website: String
  }
  
  # A partner agreement
  type PartnerAgreement {
    # Datetime the agreement was accepted
    acceptedAt: ISO8601DateTime
  
    # ID of user who accepted this agreement
    acceptedBy: String
  
    # The associated agreement
    agreement: Agreement!
  
    # Unique ID for this partner agreement
    id: ID!
  }
  
  # A partner agreement or errors object
  union PartnerAgreementOrErrorsUnion = Errors | PartnerAgreement
  
  type PartnerArtist {
    artist: Artist
  