Ensure that it is possible to import type definitions from vue-form-wizard directly (as opposed to needing to reference e.g. vue-form-wizard/types/FormWizard). Leave named exports which are not defined in types/index.d.ts for backwards compatibility.

types/index.d.ts

@@ -3,13 +3,18 @@ import { PluginFunction } from "vue";
 
 export function install (vue: typeof Vue): void
 
-import { Wizard } from './FormWizard'
-import { Tab } from './TabContent'
-import { Step } from './WizardStep'
+export {
+  Wizard as FormWizard,
+  ShapeType,
+  LayoutType,
+  StepSizeType
+} from "./FormWizard"
+export { Tab as TabContent } from "./TabContent"
+export { Step as WizardStep } from "./WizardStep"
 
-export class FormWizard extends Wizard {}
-export class TabContent extends Tab {}
-export class WizardStep extends Step {}
+import { Wizard as FormWizard } from "./FormWizard"
+import { Tab as TabContent } from "./TabContent"
+import { Step as WizardStep } from "./WizardStep"
 
 declare class VueFormWizard {
   static install: PluginFunction<never>;