See #170: channels ui (listeners)

api/config/api_urls.py

api/funkwhale_api/audio/serializers.py

api/funkwhale_api/audio/views.py

api/funkwhale_api/common/filters.py

api/funkwhale_api/common/models.py

api/funkwhale_api/common/utils.py

api/funkwhale_api/common/views.py

api/funkwhale_api/federation/api_serializers.py

api/funkwhale_api/federation/api_urls.py

api/funkwhale_api/federation/api_views.py

api/funkwhale_api/federation/serializers.py

api/funkwhale_api/music/models.py

api/funkwhale_api/music/serializers.py

api/funkwhale_api/subsonic/renderers.py

api/funkwhale_api/users/models.py

api/funkwhale_api/users/serializers.py

api/tests/audio/test_serializers.py

api/tests/audio/test_views.py

api/tests/common/test_filters.py

api/tests/common/test_views.py