11 files declare their use of PaymentLineItemManagerInterface in Payment 8.2

PaymentFactory.php in modules/payment_reference/src/PaymentFactory.php

PaymentFactoryTest.php in modules/payment_reference/tests/src/Unit/PaymentFactoryTest.php

PaymentForm.php in modules/payment_form/src/Plugin/Field/FieldFormatter/PaymentForm.php

PaymentForm.php in modules/payment_form/src/Plugin/Field/FieldWidget/PaymentForm.php

PaymentFormTest.php in modules/payment_form/tests/src/Unit/Plugin/Field/FieldFormatter/PaymentFormTest.php

PaymentFormTest.php in modules/payment_form/tests/src/Unit/Plugin/Field/FieldWidget/PaymentFormTest.php

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

PaymentLineItemLabelTest.php in tests/src/Unit/Plugin/views/field/PaymentLineItemLabelTest.php

PaymentLineItemsInput.php in src/Element/PaymentLineItemsInput.php

PaymentLineItemsInputTest.php in tests/src/Unit/Element/PaymentLineItemsInputTest.php

PaymentTest.php in tests/src/Unit/PaymentTest.php