Download the file of a preview of the shared playlist as an attachment. The preview must be in the playlist. You do not need an account. The token of the link is the credential. If the link has a password, give it in the password query parameter.
GET
/shared/playlists/{token}/preview-files/{preview_file_id}/download
curl \
--request GET '/api/shared/playlists/{token}/preview-files/{preview_file_id}/download'