code: def _query_inside(self, target, workload):
      key = (target, workload)
      if key in self.memory:
          return self.memory[key]
      cfg = FallbackConfigEntity()
      self.memory[key] = cfg
      cfg.is_fallback = False
      return cfg
  
imports: from tvm import autotvm
  from tvm.autotvm.task.space import FallbackConfigEntity
label_desc: Use image node_id 1 for calling the Int8Fallback obj's underlying member method code with example usage: obj._query_inside(target, workload) and returns: cfg, self