Set a model instance for the model being queried.

        :param model: The model instance
        :type model: orator.orm.Model

        :return: The current Builder instance
        :rtype: Builder

def set_model(self, model):
        """
        Set a model instance for the model being queried.

        :param model: The model instance
        :type model: orator.orm.Model

        :return: The current Builder instance
        :rtype: Builder
        """
        self._model = model

        self._query.from_(model.get_table())

        return self