diff --git a/resources/functionMap.php b/resources/functionMap.php
index a216ff776a5..23e68abad37 100644
--- a/resources/functionMap.php
+++ b/resources/functionMap.php
@@ -2616,25 +2616,25 @@
 'GearmanClient::addOptions' => ['bool', 'options'=>'int'],
 'GearmanClient::addServer' => ['bool', 'host='=>'string', 'port='=>'int'],
 'GearmanClient::addServers' => ['bool', 'servers='=>'string'],
-'GearmanClient::addTask' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'string'],
-'GearmanClient::addTaskBackground' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'string'],
-'GearmanClient::addTaskHigh' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'string'],
-'GearmanClient::addTaskHighBackground' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'string'],
-'GearmanClient::addTaskLow' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'string'],
-'GearmanClient::addTaskLowBackground' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'string'],
+'GearmanClient::addTask' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'?string'],
+'GearmanClient::addTaskBackground' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'?string'],
+'GearmanClient::addTaskHigh' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'?string'],
+'GearmanClient::addTaskHighBackground' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'?string'],
+'GearmanClient::addTaskLow' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'?string'],
+'GearmanClient::addTaskLowBackground' => ['GearmanTask', 'function_name'=>'string', 'workload'=>'string', 'context='=>'mixed', 'unique='=>'?string'],
 'GearmanClient::addTaskStatus' => ['GearmanTask', 'job_handle'=>'string', 'context='=>'string'],
 'GearmanClient::clearCallbacks' => ['bool'],
 'GearmanClient::clone' => ['GearmanClient'],
 'GearmanClient::context' => ['string'],
 'GearmanClient::data' => ['string'],
 'GearmanClient::do' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'string'],
-'GearmanClient::doBackground' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'string'],
-'GearmanClient::doHigh' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'string'],
-'GearmanClient::doHighBackground' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'string'],
+'GearmanClient::doBackground' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'?string'],
+'GearmanClient::doHigh' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'?string'],
+'GearmanClient::doHighBackground' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'?string'],
 'GearmanClient::doJobHandle' => ['string'],
-'GearmanClient::doLow' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'string'],
-'GearmanClient::doLowBackground' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'string'],
-'GearmanClient::doNormal' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'string'],
+'GearmanClient::doLow' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'?string'],
+'GearmanClient::doLowBackground' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'?string'],
+'GearmanClient::doNormal' => ['string', 'function_name'=>'string', 'workload'=>'string', 'unique='=>'?string'],
 'GearmanClient::doStatus' => ['array'],
 'GearmanClient::echo' => ['bool', 'workload'=>'string'],
 'GearmanClient::error' => ['string'],