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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_value(*args, **kwargs):
 """Get from config object by exposing Config.get_value method. dict.get() method on Config.values """

    global _config
    if _config is None:
        raise ValueError('configuration not set; must run figgypy.set_config first')
    return _config.get_value(*args, **kwargs)