anchor.diff:  
     # True if message is an invoice message
     isInvoice: Boolean
  +    @deprecated(
  +      reason: "Payment Request was deprecated. The field was kept for legacy client support. [Will be removed in v2]"
  +    )
   }
   
   # A connection to a list of items.
  
positive.code:     symbol: String
      thousand: String = ","
    ): String
  }
  
  enum InvoiceState {
  
negative.code:     # The ID of the invoice
      invoiceId: String!
    ): Invoice
      @deprecated(
        reason: "Payment Request was deprecated. The field was kept for legacy client support. [Will be removed in v2]"
      )
  
    # Sale Artworks search results
    lotsByFollowedArtistsConnection(
  