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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 _read_config_file(self):
 """read in the configuration file, a json file defined at self.config"""


        try:
            with open(self.config, 'r') as f:
                config_data = json.load(f)
        except FileNotFoundError:
            config_data = {}

        return config_data