Pass language to stripe

/*
 * Pass language to stripe
 * Supported language: https://support.stripe.com/questions/supported-languages-for-stripe-checkout
 */
function my_em_stripe_locale($stripe_checkout,$EM_Booking){
 $stripe_checkout['locale'] = "de";
 return $stripe_checkout;
}
add_filter('em_gateway_stripe_checkout_session_vars', 'my_em_stripe_locale', 100,2);