anchor.diff:    type: String!
   }
   
  -enum ConversationType {
  +enum ConversationsInputMode {
     PARTNER
     USER
   }
  
positive.code:     hasReply: Boolean
      last: Int
      partnerId: String
      type: ConversationType
    ): ConversationConnection
    createdAt(
      format: String
  
negative.code:     hasReply: Boolean
      last: Int
      partnerId: String
      type: ConversationsInputMode = USER
    ): ConversationConnection
  
    # A user's credit card
  