Register Helper checkbox field for thread by igbc

my_pmprorh_after_email_init_igbc.php

<?php
function my_pmprorh_after_email_init_igbc() {
	//don't break if Register Helper is not loaded
	if( !function_exists( 'pmprorh_add_registration_field') ) {
		return false;
	}

	//define the fields
	$fields_after_email = array();
	
	$fields_after_email[] = new PMProRH_Field( 
		'igbc_mailings', 
		'checkbox', 
		array(
		'label' => 'Check this box to receive IGBC communications by email',
		'profile' => true,
		'required' => false,
		'memberslistcsv' => true,
		) 
	);
	//add the fields in the after_email area of the checkout page
	foreach( $fields_after_email as $field ) {
		pmprorh_add_registration_field("after_email", $field);
	}
}
add_action( 'init', 'my_pmprorh_after_email_init_igbc' );