how to add google fonts manually on wordpress code example

Example: add google font to wordpress theme

function wpb_add_google_fonts() {
 
wp_enqueue_style( 'wpb-google-fonts', 'https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,700italic,400,700,300', false ); 
}
 
add_action( 'wp_enqueue_scripts', 'wpb_add_google_fonts' );