Preprocesses metadata for elements of type `fringe`, `dsviz`, or `drop` and saves them to given path.
dspin_save(element, slug, board, path, ...)
| element | Element to be saved (`fringe`, `dsviz`, or `drop`) |
|---|---|
| slug | Slug of element to be saved |
| board | `dspins_board_s3` board |
| path | Path to save elements to |
| ... |
Metadata for element