Bundling Google fonts in a WordPress Theme

How can I embed Google fonts in a WordPress theme, I DON’T want to enqueue it with Google.com/fonts like this –

function google_fonts() {

wp_register_style('googleFonts', 'https://fonts.googleapis.com/css?family=Open+Sans:400,300,600');
    wp_enqueue_style( 'googleFonts');
  }
add_action('wp_print_styles', 'google_fonts');

I want to bundle Google fonts with a theme so that I can pull the font picker in the customizer. I couldn’t find a tutorial in Google, all I see how to tutorials of enqueuing not bundling it. Any links or tips would be appreciated. Thanks in advance.