A dictionary of properties to pass to the method
NOTE This is an abstract type. Any object meeting this description can be used where this type is used.
The name of the file to be downloaded. If no name is specified here, the filename will be the last component of the url. (optional)
A dictionary of properties that can be passed through with the request to the event listeners. (optional)
Warning: Do not include anything more than simple key value pairs. Including Titanium objects in userInfo will cause errors.