THPDFCSCTransportRequest Record

THPDFCSCTransportRequest = record
  Method, Authorization, ContentType, Body: AnsiString;
  URL: UnicodeString;
  IdempotencyKey, OperationIdentifier: AnsiString;
  Attempt, MaxResponseBytes: Integer;
end;

The application-owned transport must honour MaxResponseBytes while downloading and should map network failures to THPDFCSCTransportStatus without placing secrets in diagnostics

CSC Remote Signature Provider