woocommerce_taxonomy_objects_product_shipping_class filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_taxonomy_objects_product_shipping_class', 'filter_function_name_7876' );
function filter_function_name_7876( $array ){
	// filter...

	return $array;
}

$array

-

Where the hook is called

apply_filters( 'woocommerce_taxonomy_objects_product_shipping_class', array( 'product', 'product_variation' ) ),

Where in WP core the hook is used WooCommerce