How to pre-preload bitmap fonts

[User1]

Hello, I use this code to pre-preload graphics in loading scene.

constructor()
{
    super({
        
        key     : 'loading',
        pack    : 
        {
            files : 
            [
                { type: 'image', key: 'preloader1', url: 'images/preloader1.png' },
                { type: 'image', key: 'preloader2', url: 'images/preloader2.png' },
            ] 
        }
    })
}

So, “pack files” acts like a pre-preloader, but I don’t know how to load bitmap fonts instead of loadingbar images? How to set type and url?

[prob]

{ "type": "bitmapFont",
  "key": "fontKey",
  "textureURL": "fonts/bitmap/fontFile.png",
  "fontDataURL": "fonts/bitmap/fontFile.xml" }

[User1]

Cheers