woocommerce_api_tax_classes_response filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_api_tax_classes_response', 'filter_function_name_8490', 10, 4 );
function filter_function_name_8490( $tax_classes, $classes, $fields, $that ){
	// filter...

	return $tax_classes;
}

$tax_classes

-

$classes

-

$fields

-

$that

-

Where the hook is called

return array( 'tax_classes' => apply_filters( 'woocommerce_api_tax_classes_response', $tax_classes, $classes, $fields, $this ) );

Where in WP core the hook is used WooCommerce