The `goog.async.Deferred.AlreadyCalledError` Class

goog.async.Deferred.AlreadyCalledError
> goog.debug.Error
> Error

`goog.async.Deferred.AlreadyCalledError(deferred)`

An error sub class that is used when a deferred has already been called.

deferred {!goog.async.Deferred}: The deferred object.

`.deferred` {`goog.async.Deferred`}

The deferred that raised this error.

`.message`

`.name`