32 files declare their use of Direction in SMS Framework 8

AccountRegistration.php in modules/sms_user/src/AccountRegistration.php

DefaultSmsProvider.php in src/Provider/DefaultSmsProvider.php

Incoming.php in tests/modules/sms_test_gateway/src/Plugin/SmsGateway/Incoming.php

PhoneNumberProvider.php in src/Provider/PhoneNumberProvider.php

PhoneNumberVerification.php in src/Provider/PhoneNumberVerification.php

SendToPhoneForm.php in modules/sms_sendtophone/src/Form/SendToPhoneForm.php

sms.install in ./sms.install

Install, update and uninstall functions for SMS Framework.

SmsDevelMessageForm.php in modules/sms_devel/src/Form/SmsDevelMessageForm.php

SmsDevelMessageTest.php in modules/sms_devel/tests/src/Functional/SmsDevelMessageTest.php

SmsFrameworkBrowserTest.php in tests/src/Functional/SmsFrameworkBrowserTest.php

SmsFrameworkDeliveryReportUpdateTest.php in tests/src/Kernel/SmsFrameworkDeliveryReportUpdateTest.php

SmsFrameworkGatewayAdminTest.php in tests/src/Functional/SmsFrameworkGatewayAdminTest.php

SmsFrameworkGatewayEntityTest.php in tests/src/Kernel/SmsFrameworkGatewayEntityTest.php

SmsFrameworkGatewayPluginTest.php in tests/src/Kernel/SmsFrameworkGatewayPluginTest.php

SmsFrameworkMessageEntityTest.php in tests/src/Kernel/SmsFrameworkMessageEntityTest.php

SmsFrameworkMessageTestTrait.php in tests/src/Functional/SmsFrameworkMessageTestTrait.php

SmsFrameworkProcessorTest.php in tests/src/Kernel/SmsFrameworkProcessorTest.php

SmsFrameworkProviderTest.php in tests/src/Kernel/SmsFrameworkProviderTest.php

SmsFrameworkQueueTest.php in tests/src/Kernel/SmsFrameworkQueueTest.php

SmsFrameworkRecipientGatewayEventTest.php in tests/src/Kernel/SmsFrameworkRecipientGatewayEventTest.php

SmsFrameworkSmsSendTest.php in tests/src/Kernel/SmsFrameworkSmsSendTest.php

SmsFrameworkUpdateTest.php in tests/src/Functional/SmsFrameworkUpdateTest.php

SmsFrameworkUserAccountRegistrationServiceTest.php in modules/sms_user/tests/src/Kernel/SmsFrameworkUserAccountRegistrationServiceTest.php

SmsFrameworkUserActiveHoursServiceTest.php in modules/sms_user/tests/src/Kernel/SmsFrameworkUserActiveHoursServiceTest.php

SmsFrameworkUserTest.php in modules/sms_user/tests/src/Kernel/SmsFrameworkUserTest.php

SmsFrameworkViewsTest.php in tests/src/Kernel/SmsFrameworkViewsTest.php

SmsGateway.php in src/Entity/SmsGateway.php

SmsGatewayForm.php in src/Form/SmsGatewayForm.php

SmsMessageDirection.php in src/Plugin/views/field/SmsMessageDirection.php

SmsMessageProcessor.php in src/EventSubscriber/SmsMessageProcessor.php

SmsProcessor.php in src/Plugin/QueueWorker/SmsProcessor.php

SmsQueueProcessor.php in src/Provider/SmsQueueProcessor.php