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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 Restore(cls, state):
 """Unserialize this object."""


        target = SlotIdentifier.FromString(state.get('target'))
        data = base64.b64decode(state.get('data'))
        var_id = state.get('var_id')
        valid = state.get('valid')

        return ConfigEntry(target, var_id, data, valid)