Manipulate Custom Field data before a post is indexed by SearchWP

gistfile1.php

<?php

function my_searchwp_get_custom_fields( $custom_fields, $post_id ) {
	
	// manipulate the array of Custom Fields in any way you'd like
	
	return $custom_fields;
}

add_filter( 'searchwp_get_custom_fields', 'my_searchwp_get_custom_fields', 10, 2 );