book_bundle.links.task.yml

entity.book.settings:
  title: 'Settings'
  route_name: entity.book.settings
  base_route: entity.book.settings
entity.book.view:
  title: 'View'
  route_name: entity.book.canonical
  base_route: entity.book.canonical
entity.book.edit_form:
  title: 'Edit'
  route_name: entity.book.edit_form
  base_route: entity.book.canonical
entity.book.delete_form:
  title: 'Delete'
  route_name: entity.book.delete_form
  base_route: entity.book.canonical
  weight: 10
entity.book.collection:
  title: 'Books'
  route_name: entity.book.collection
  base_route: system.admin_content
  weight: 10

entity.chapter.settings:
  title: 'Settings'
  route_name: entity.chapter.settings
  base_route: entity.chapter.settings
entity.chapter.view:
  title: 'View'
  route_name: entity.chapter.canonical
  base_route: entity.chapter.canonical
entity.chapter.edit_form:
  title: 'Edit'
  route_name: entity.chapter.edit_form
  base_route: entity.chapter.canonical
entity.chapter.delete_form:
  title: 'Delete'
  route_name: entity.chapter.delete_form
  base_route: entity.chapter.canonical
  weight: 10
entity.chapter.collection:
  title: 'Chapters'
  route_name: entity.chapter.collection
  base_route: system.admin_content
  weight: 10