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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_model(self, model, model_id):
 """Get a single model from the server. Args: model (string):
 The class as a string. model_id (string):
 The integer ID as a string. Returns: :class:`cinder_data.model.CinderModel`: A instance of the model. """

        return self._store.find_record(self._get_model_class(model), int(model_id))