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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def pokeVisited(self, objname, obj, record, existing, visited=None, _stack=None, **kwargs):
 """ Serialize an already serialized object. If the underlying store supports linking, this is the place where to make links. The default implementation delegates to :meth:`pokeStorable` or :meth:`pokeNative`. Arguments: objname (any):
 record reference. obj (any):
 object to be serialized. existing (any):
 absolute reference of the record which the object was already serialized into. visited (dict):
 already serialized objects. _stack (CallStack):
 stack of parent object names. """

        if self.hasPythonType(obj):
            storable = self.byPythonType(obj).asVersion()
            self.pokeStorable(storable, objname, obj, record, visited=visited, \
                _stack=_stack, **kwargs)
        else:
            try:
                self.pokeNative(objname, obj, record)
            except (SystemExit, KeyboardInterrupt):
                raise
            except:
                self.dump_stack(_stack)
                raise