How do I create typescript type definitions for react-native native ui component?

Let us say that I have a react native native UI component like the one in this example. How do I create a typescript type definition for it, like the ones that can be imported, for example with 'npm i @types/somelib'? I didn't find explanations about how to do this in the documentation.

The idea is to be able to use the native component seamlessly in a react-native typescript project and for that I need to create the type definition for native components. So, how do I create typescript type definitions for native components?

The iOS/objc side

• FoobarView.h:

    #ifndef FoobarView_h
    #define FoobarView_h
    #import <UIKit/UIKit.h>
    #import <Foundation/Foundation.h>
    @interface FoobarView : UITextView
    @property (nonatomic, assign) BOOL teste;
    @end
    #endif

• FoobarView.m:

    #import "FoobarView.h"
    @implementation FoobarView
    -(void) setTeste:(BOOL)teste
    {
      if (teste == YES)
      {
        [self setText:@"é true"];
      }else
      {
        [self setText:@"é false"];
      }
    }
    -(BOOL)getTeste
    {
      if ([[self text] isEqual:@"é true"])
      {
        return YES;
      }else
      {
        return NO;
      }
    }
    @end

• FoobarManager.m

    #import <Foundation/Foundation.h>
    #import <React/RCTViewManager.h>
    #import "FoobarView.h"
    @interface FooManager : RCTViewManager
    @end
    @implementation FooManager
    RCT_EXPORT_MODULE(FoobarView)
    RCT_EXPORT_VIEW_PROPERTY(teste, BOOL)
    +(BOOL) requiresMainQueueSetup
    {
      return YES;
    }
    - (UIView*)view
    {
      FoobarView *v = [[FoobarView alloc]init];
      return v;
    }
    @end

So, FoobarView is a native iOS view, written in objc. It is not a react native ui component. I am using a simple descendent from UITextView but it could be anything, like a SceneKit view.

To use it in the javascript side of react native, I'm using this code in FoobarView.js:

import { requireNativeComponent } from 'react-native';
module.exports = requireNativeComponent('FoobarView');

And, finally, i can use FoobarView in a render block:

<FoobarView style={{width:'100%', height:30}} teste={true} />

My question is: How can I define that FoobarView, something defined in the ios, has the property teste, and that teste is a boolean?