code: def this_boot(self, bootid=None):
          
          if bootid is None:
              bootid = _id128.get_boot().hex
          else:
              bootid = getattr(bootid, 'hex', bootid)
          self.add_match(_BOOT_ID=bootid)
docs: Add match for _BOOT_ID for current boot or the specified boot ID.
  
          If specified, bootid should be either a UUID or a 32 digit hex number.
  
          Equivalent to add_match(_BOOT_ID='bootid').