How to register custom fonts on gutenberg site editor typography?

if ( ! function_exists( 'wp_register_webfonts' ) ) {
    return;
}
wp_register_webfonts(
    array(
	array(
		'font-family'  => 'custom fonts name',
		'font-weight'  => '400',
		'font-style'   => 'normal',
		'font-stretch' => 'normal',
		'src'  => array( get_theme_file_path('assets/fonts/custom-fonts-here.woff2') ),
	),
    )
);

Output