ld_certificate_link_label

 <?php
/**
 * Example usage for ld_certificate_link_label filter.
 */
add_filter(
	'ld_certificate_link_label',
	function( $label, $user_id, $quiz_id ) {
		// May add any custom logic using $label, $user_id, $quiz_id.

		// Always return $label.
		return $label;
	},
	10,
	3
);