6 files declare their use of TransactionTypeInterface in Transaction 8

ApplicableTransactionAccess.php in src/Access/ApplicableTransactionAccess.php

Transaction.php in src/Entity/Transaction.php

TransactionController.php in src/Controller/TransactionController.php

TransactionForm.php in src/Form/TransactionForm.php

TransactionType.php in src/Entity/TransactionType.php

TransactionTypeFormBase.php in src/Form/TransactionTypeFormBase.php