docs: def set_state(self, state):
          """
          Call the set_state method in SimStatePlugin class, and then perform the delayed initialization.
  
          :param state: The SimState instance
          """
          SimStatePlugin.set_state(self, state)
  
          # Delayed initialization
          stack_region_map, generic_region_map = self._temp_stack_region_map, self._temp_generic_region_map
  
          if stack_region_map or generic_region_map:
              # Inherited from its parent
              self._stack_region_map = stack_region_map.copy()
              self._generic_region_map = generic_region_map.copy()
  
          else:
              if not self._abstract_backer and o.REGION_MAPPING in self.state.options:
                  # Only the top-level SimMemory instance can have region maps.
                  self._stack_region_map = RegionMap(True)
                  self._generic_region_map = RegionMap(False)
  
              else:
                  self._stack_region_map = None
                  self._generic_region_map = None