docs: def hasReservation(self, pid, subject, vendorSpecific=None):
          """See Also: hasReservationResponse()
  
          Args:
            pid:
            subject:
            vendorSpecific:
  
          Returns:
  
          """
          response = self.hasReservationResponse(pid, subject, vendorSpecific)
          return self._read_boolean_404_response(response)