def METHOD_NAME(self, va: int) -> Optional[int]:
    (pa, error_code) = self.helper.METHOD_NAME(va)
    if error_code:
        self.logger.log_hal(f'[mem] Looks like VA (0x{va:016X}) not mapped')
        return None
    self.logger.log_hal(f'[mem] VA (0x{va:016X}) -> PA (0x{pa:016X})')
    return pa