Using filters to change ATR Woo Global Price Options plugin display of price options list in single product page

gistfile1.txt

/* https://wordpress.org/plugins/atr-woo-global-price-options/ */
/* You can use this filters to change the display of the price options list */
/* Note the different filters for each part */

/* For the Header */
add_filter( 'atr_gpo_before_price_options', 'test_before_price_options', 20 ); 	
function test_before_price_options(){
	$price_options_header = '<div class="atr-price-options-wrap"><p class="gpo-before-price-options">THIS IS THE HEAD OF THE LIST</p>';
	return $price_options_header;			
}

/* For list item open tag */
/* Will affect only radio button list display */
add_filter( 'atr_gpo_before_price_options_radio_item', 'test_atr_gpo_before_price_options_radio_item', 20 ); 	
function test_atr_gpo_before_price_options_radio_item(){
	$price_options_before_radio_item = '<div class="before_price_options_radio_item">';
	return $price_options_before_radio_item;			
}

/* For list item closing tag */
/* Will affect only radio button list display */
add_filter( 'atr_gpo_after_price_options_radio_item', 'test_atr_gpo_after_price_options_radio_item', 20 ); 	
function test_atr_gpo_after_price_options_radio_item(){
	$price_options_after_radio_item = '</div>';
	return $price_options_after_radio_item;			
}

/* For the footer of the list */
add_filter( 'atr_gpo_after_price_options', 'test_after_price_options', 20 ); 	
function test_after_price_options(){
	$price_options_footer = '<p class="gpo-after-price-options">THIS IS THE FOOTER</p></div>';
	return $price_options_footer;			
}