How to add custom fonts without plugin on Astra theme

// Add custom fonts without plugin on Astra theme
// More info on https://fahimm.com
add_filter( 'astra_system_fonts', 'add_system_fonts' );

function add_system_fonts( $fonts ) {

    $additional_fonts = array(
        'Hiragino Sans' =>  array(
            'fallback' => 'Meiryo,sans-serif'
        ),
        'Hiragino Serif' => array(
            'fallack' => 'MS PMincho,serif'
        )
    );

    return array_merge( $fonts, $additional_fonts );
}