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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 GET_getitemvalues(self) -> None: """Get the values of all |Variable| objects observed by the current |GetItem| objects. For |GetItem| objects observing time series, |HydPyServer.GET_getitemvalues| returns only the values within the current simulation period. """

        for item in state.getitems:
            for name, value in item.yield_name2value(state.idx1, state.idx2):
                self._outputs[name] = value