docs: def get(self, key, default=None, type=None):
          """Returns the first value for a key.
  
          If `type` is not None, the value will be converted by calling
          `type` with the value as argument. If type() raises `ValueError`, it
          will be treated as if the value didn't exist, and `default` will be
          returned instead.
          """
          try:
              value = self[key]
              if type is not None:
                  return type(value)
              return value
          except (KeyError, ValueError):
              return default