code: def get(name, *default):
      # type: (str, Any) -> Any
      
      global g_config
  
      curr = g_config
      for part in name.split('.'):
          if part in curr:
              curr = curr[part]
          elif default:
              return default[0]
          else:
              raise AttributeError("Config value '{}' does not exist".format(
                  name
              ))
  
      return curr
docs: Get config value with the given name and optional default.
  
      Args:
          name (str):
              The name of the config value.
          *default (Any):
              If given and the key doesn't not exist, this will be returned
              instead. If it's not given and the config value does not exist,
              AttributeError will be raised
  
      Returns:
          The requested config value. This is one of the global values defined
          in this file. If the value does not exist it will return `default` if
          give or raise `AttributeError`.
  
      Raises:
          AttributeError: If the value does not exist and `default` was not given.