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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_state(self):
 """ Return the sampler and step methods current state in order to restart sampling at a later time. """


        self.step_methods = set()
        for s in self.stochastics:
            self.step_methods |= set(self.step_method_dict[s])

        state = Sampler.get_state(self)
        state['step_methods'] = {}

        # The state of each StepMethod.
        for sm in self.step_methods:
            state['step_methods'][sm._id] = sm.current_state().copy()

        return state