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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 load(self, model):
 """ Load all information from an experimental configuration file. Parameters model : cobra.Model The metabolic model under investigation. """

        self.load_medium(model)
        self.load_essentiality(model)
        self.load_growth(model)
        # self.load_experiment(config.config.get("growth"), model)
        return self