examples-3.x-dev/modules/session_example/session_example.links.task.yml

# The Edit and View tabs for the session example pages.
session_example.form:
  route_name: session_example.form
  base_route: session_example.form
  title: Edit
session_example.view:
  route_name: session_example.view
  base_route: session_example.form
  title: View