How to use the fbt.fbt function in fbt

it('should pass when used fbt as export var', () => {
    const fbtResult: string = fbt2('text', 'desc');
  });

<button>Button with a long label</button>
      
      <div>
        <button>
          Button with a long label and right icon
        </button>
      </div>
      <div>
        <button>
          Button with a long label and left icon
        </button>
      </div>
      <div>
        <button>
          Translated{' '}
          {fbt('with a function', 'wow, much desc')}
        </button>
      </div>
    
  );
};