getTicketFieldsSetting(listings: ReadonlyArray<{ listing: { fields: ListingFields; }; }>): ListingFields
The merged contact-fields setting for a page's listings: every listing's own setting, folded into one. Takes anything with a listing that names its contact fields, so this module stays free of booking-model imports.
listings: ReadonlyArray<{ listing: { fields: ListingFields; }; }>