code: def _is_defaultexit_direct_jump(self):
          
          if not (self.jumpkind == 'Ijk_InvalICache' or self.jumpkind == 'Ijk_Boring' or self.jumpkind == 'Ijk_Call'):
              return False
  
          target = self.default_exit_target
          return target is not None
docs: Checks if the default of this IRSB a direct jump or not.