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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 initialize(self, params, repetition):
 """ Initialize experiment parameters and default values from configuration file. Called at the beginning of each experiment and each repetition. """

    super(TinyCIFARExperiment, self).initialize(params, repetition)
    self.network_type = params.get("network_type", "sparse")