6 files declare their use of Rule in RNG - Events and Registrations 8

EventMeta.php in src/EventMeta.php

MessageActionForm.php in src/Form/MessageActionForm.php

RngEventAccessTest.php in src/Tests/RngEventAccessTest.php

RngEventTypeAccessDefaultsTest.php in src/Tests/RngEventTypeAccessDefaultsTest.php

RngMessageRules.php in tests/src/Kernel/RngMessageRules.php

RngScheduledRuleTest.php in tests/src/Kernel/RngScheduledRuleTest.php