Change WooCommerce validation text when adding grouped products

Want to change the WooCommerce text Please choose a product to add to your cart… for when adding grouped products to the cart.

I see it here - see below - but I would like to create a snippet code that I can add to my custom functions instead of touching the code.

/**
* Handle adding grouped products to the cart.
*
* @since 2.4.6 Split from add_to_cart_action.
* @param int $product_id Product ID to add to the cart.
* @return bool success or not
*/
private static function add_to_cart_handler_grouped( $product_id ) {
$was_added_to_cart = false;
$added_to_cart     = array();
$items             = isset( $_REQUEST['quantity'] ) && is_array( $_REQUEST['quantity'] ) ? wp_unslash( $_REQUEST['quantity'] ) : array(); // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
if ( ! empty( $items ) ) {
$quantity_set = false;
foreach ( $items as $item => $quantity ) {
$quantity = wc_stock_amount( $quantity );
if ( $quantity <= 0 ) {
continue;
}
$quantity_set = true;
// Add to cart validation.
$passed_validation = apply_filters( 'woocommerce_add_to_cart_validation', true, $item, $quantity );
// Suppress total recalculation until finished.
remove_action( 'woocommerce_add_to_cart', array( WC()->cart, 'calculate_totals' ), 20, 0 );
if ( $passed_validation && false !== WC()->cart->add_to_cart( $item, $quantity ) ) {
$was_added_to_cart      = true;
$added_to_cart[ $item ] = $quantity;
}
add_action( 'woocommerce_add_to_cart', array( WC()->cart, 'calculate_totals' ), 20, 0 );
}
if ( ! $was_added_to_cart && ! $quantity_set ) {
wc_add_notice( __( 'Please choose the quantity of items you wish to add to your cart…', 'woocommerce' ), 'error' );
} elseif ( $was_added_to_cart ) {
wc_add_to_cart_message( $added_to_cart );
WC()->cart->calculate_totals();
return true;
}
} elseif ( $product_id ) {
/* Link on product archives */
wc_add_notice( __( 'Please choose a product to add to your cart…', 'woocommerce' ), 'error' );
}
return false;
}

I am not good at this custom code, but I would like to add my own custom message.

add_filter('gettext_woocommerce', 'translate_woocommerce_strings_cart');
function translate_woocommerce_strings_cart($string) {
if ('Please choose a product to add to your cart…' === $string) {
$string = esc_html__('Please choose a product.', 'woocommerce');
}
return $string;
}