A data URI with the contents of the file, e.g. data:image/jpeg;base64,/9j/4AAQSk...
The name of the corresponding form element, e.g. upl1
The extension of the file, e.g. jpeg
Whether the file is an image.
The file size in bytes
Media type of the file, e.g. image/jpeg
Legacy model for a single item in the file store, representing a binary file.
Legacy, will be replaced with a better model.