core_context-8.x-1.x-dev/core_context.services.yml

services:
  core_context:
    class: 'Drupal\core_context\ContextProvider\Generic'
    tags:
      - { name: context_provider }
      - { name: service_collector, call: addProvider, tag: core_context.context_provider }

  core_context.canonical_entity:
    class: 'Drupal\core_context\ContextProvider\CanonicalEntity'
    arguments:
      - '@entity_display.repository'
      - '@current_route_match'
      - '@entity_type.manager'
    tags:
      - { name: core_context.context_provider }

  core_context.route_subscriber:
    class: 'Drupal\core_context\Routing\RouteSubscriber'
    tags:
      - { name: event_subscriber }