TEMPLATE_CLASS_USERS, META_CLIENT => CLIENT_API_USER, CLIENT_AUTH_TOKEN => '136EA67A-B1E2-0A4B-2BD8-EE34D39DFDE1', META_DO_CACHE => false, META_EVENT_GUID => guid() ]; $request = [ BROKER_REQUEST => BROKER_REQUEST_FETCH ]; $query = [ STRING_KEY => [ OPERAND_NULL => [ OPERATOR_EQ => [null] ]]]; $request[BROKER_DATA] = [STRING_QUERY_DATA => $query]; $request[BROKER_META_DATA] = $meta; $errors = []; if (!validateMetaData($request, $errors)) echo 'validateMetaData() failed' . PHP_EOL; else echo 'validateMetaData() succeeded' . PHP_EOL; exit;