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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 validate_model(self):
 """ Validate the model """

        model: AssetAllocationModel = self.get_asset_allocation_model()
        model.logger = self.logger

        valid = model.validate()
        if valid:
            print(f"The model is valid. Congratulations")
        else:
            print(f"The model is invalid.")