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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_log_model_class(self):
 """Cache for fetching the actual log model object once django is loaded. Otherwise, import conflict occur: WorkflowEnabled imports <log_model> which tries to import all models to retrieve the proper model class. """

        if self.log_model_class is not None:
            return self.log_model_class

        app_label, model_label = self.log_model.rsplit('.', 1)
        self.log_model_class = apps.get_model(app_label, model_label)
        return self.log_model_class