How can I issue a download request at runtime?

I’m having a hard time finding a solution on how to download a file from a remote server (e.g. during runtime.

I’ve been reading the API reference and I came upon FCloudFile (
From the remarks it says that it holds the data used in downloading a file asynchronously from the online service.

But I cannot find a function that has a download url as a parameter then executes an asynchronous download and later on yields an FCloudFile.