Easiest way to generate TypeScript types and interfaces from my C# code

Questions
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1

In my custom package, I have a controller that inherits ManagementApiControllerBase. It has an action that uses a model that I created.

I’m calling this action from TypeScript code, and it works.

But if I want to add more and more actions and call them from TypeScript, I would have to create interfaces in TypeScript, copying my models.

Example:
Model:

public class Car
{
    public string Brand { get; set; } = string.Empty;
    public string Model { get; set; } = string.Empty;
}

Controller:
    [HttpGet("get-cars")]
    [ProducesResponseType(typeof(IEnumerable<Car>), StatusCodes.Status200OK)]
    public IActionResult GetCars()
    {
        var cars = _carService.GetAll()
            .Select(contentType => new Car
            {
                Brand = contentType.Brand,
                Model = contentType.Model,
            });

        return Ok(cars);
    }

And in my ts code, I have to define Car again:

interface Car{
    brand: string;
    model: string;
}


    async firstUpdated() {

        const response = await tryExecute(this, umbHttpClient.get<Car[]>({
            url: '/umbraco/car-controller/get-cars',
        }));
}

What is the best practice to do this? Now contradicting the title of the post: Is it okay if I create a TypeScript file for the types manually, or should I generate them somehow, or something like that?

I’m still new to Umbraco, and I’m interested in best practices for creating my own package.