Issue to generate auto Entity typescript and modal files

I have created one project in VAADIN Fusion and Every time I create new Entity then I create manually typescript entity.

Is there any plugin to auto generates those files ?

What do you mean exactly?

Do you create a Java entity and wanna generate a ts entity?
If that is so, you have to define a endpoint and use the entity there. Only those entities will generate they are used in the one of your public methods of your endpoints.