Run black.

tests/api/test_auth.py

tests/api/test_filtering.py

tests/api/test_ratelimiting.py

tests/appservice/test_appservice.py

tests/appservice/test_scheduler.py

tests/config/test_generate.py

tests/config/test_load.py

tests/crypto/test_event_signing.py

tests/crypto/test_keyring.py

tests/events/test_utils.py

tests/federation/test_federation_server.py

tests/handlers/test_appservice.py

tests/handlers/test_auth.py

tests/handlers/test_device.py

tests/handlers/test_directory.py

tests/handlers/test_e2e_keys.py

tests/handlers/test_presence.py

tests/handlers/test_profile.py

tests/handlers/test_register.py

tests/handlers/test_typing.py