No help topics for prepared statement commands

Help is present for 'EXECUTE IMMEDIATE', but the following topics are missing: {code} MariaDB [test]> HELP 'PREPARE'; Nothing found Please try to run 'help contents' for a list of all accessible topics MariaDB [test]> HELP 'EXECUTE'; Nothing found Please try to run 'help contents' for a list of all accessible topics MariaDB [test]> HELP 'DEALLOCATE'; Nothing found Please try to run 'help contents' for a list of all accessible topics MariaDB [test]> HELP 'DEALLOCATE PREPARE'; Nothing found Please try to run 'help contents' for a list of all accessible topics {code}