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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_config(self, config):
 """ Configure grab instance with external config object. """


        self.config = copy_config(config, self.mutable_config_keys)
        if 'cookiejar_cookies' in config['state']:
            self.cookies = CookieManager.from_cookie_list(
                config['state']['cookiejar_cookies'])