This member cannot be used in scripts, but is usable in the command bar and plugins.
For thread safety, this property is not safe to read in an unsynchronized thread.
This function is used to retrieve a temporary asset id associated with this
File. This id can be used like an rbxassetid - for example, it can be assigned to the Image property of an
Throws an error if the file does not exist on disk.
The temporary asset id