Destination folder.
File to upload.
Optionaloptions: object = {}
FilePicker upload options (e.g. { notify: false }... see below).
OptionaluploadOptions: object = {}
Additional options forwarded as the 5th argument to
FilePicker.upload (e.g. { notify: false }).
The upload response, or a falsy value on failure.
Upload
filetopathon the "data" source.