public static boolean isInUnnamedImport(DMNNode node, DMNModelImpl model) {
        for (Import imported : model.getDefinitions().getImport()) {
            String importedName = imported.getName();
            if ((node.getModelNamespace().equals(imported.getNamespace()) &&
                    (importedName != null && importedName.isEmpty()))) {
                return true;
            }
        }
        return false;
    }
@Test
    void isInUnnamedImportFalse() {
        final DMNRuntime runtime = DMNRuntimeUtil.createRuntimeWithAdditionalResources("valid_models/DMNv1_5/Importing_Named_Model.dmn",
                                                                                       this.getClass(),
                                                                                       "valid_models/DMNv1_5/Imported_Model_Unamed.dmn");

        final DMNModel importedModel = runtime.getModel("http://www.trisotech.com/dmn/definitions/_f27bb64b-6fc7-4e1f-9848-11ba35e0df44",
                                                        "Imported Model");
        assertThat(importedModel).isNotNull();
        final DMNModelImpl importingModel = (DMNModelImpl)runtime.getModel("http://www.trisotech.com/dmn/definitions/_f79aa7a4-f9a3-410a-ac95-bea496edabgc",
                                                                           "Importing named Model");
        assertThat(importingModel).isNotNull();
        importedModel.getDecisions().forEach(node -> assertFalse(isInUnnamedImport(node, importingModel)));
        importedModel.getBusinessKnowledgeModels().forEach(node -> assertFalse(isInUnnamedImport(node, importingModel)));
        importedModel.getDecisionServices().forEach(node -> assertFalse(isInUnnamedImport(node, importingModel)));
        importedModel.getInputs().forEach(node -> assertFalse(isInUnnamedImport(node, importingModel)));
        importedModel.getItemDefinitions().forEach(node -> assertFalse(isInUnnamedImport(node, importingModel)));
    }