https://github.com/lukepighetti/mastodon-dart/blob/3f4b0103ab35e048960161f10099ccfe21f8011f/lib/src/endpoints/media_attachments.dart#L16
https://github.com/lukepighetti/mastodon-dart/blob/3f4b0103ab35e048960161f10099ccfe21f8011f/lib/src/endpoints/media_attachments.dart#L40