code: def get_key(cls, key):
          "Get the path to `key` in the config file."
          return cls.get().get(key, cls.DEFAULT_CONFIG.get(key,None)f get_key(cls, key):
          "Get the path to `key` in the config file."
          return cls.get().get(key, cls.DEFAULT_CONFIG.get(key,None))
docs: Get the path to `key` in the config file.