Fetches the explicitly-set chapter customizations (the chapter list and its visibility) for the media.

Requires api token with one of the following permissions

Read all folder and media data

Tokens with the "Act with a team member's permissions" permission (all:delegate_to_contact_permissions scope) can also be used. Requests made with such a token are authorized using the permissions of the contact assigned to the token.

An expiring access token created with the all:delegate_to_contact_permissions scope and an authorization for this media can also be used; any permission granted on the media allows reading its customizations.