private static function erase_student_data( $student ) {

		$messages = array();

		$props = parent::get_student_data_props();

		foreach ( $props as $prop => $name ) {

			$erased = false;

			$val = $student->get( $prop );
			if ( $val ) {
				$student->set( $prop, '' );
				$erased = true;
			}

			if ( apply_filters( 'llms_privacy_erase_student_data_prop', $erased, $prop, $student ) ) {

				/* Translators: %s Prop name. */
				$messages[] = sprintf( __( 'Removed student "%s"', 'lifterlms' ), $name );

			}
		}

		return apply_filters( 'llms_privacy_erase_student_data', $messages, $student );

	}