$_client
$_client : \Elastica\Client
Cluster settings.
$_client : \Elastica\Client
__construct(\Elastica\Client  $client) 
                Creates a cluster object.
| \Elastica\Client | $client | Connection client object | 
setPersistent(string $key, string $value) : \Elastica\Response
Sets persistent setting.
| string | $key | |
| string | $value | 
setTransient(string $key, string $value) : \Elastica\Response
Sets transient settings.
| string | $key | |
| string | $value | 
setReadOnly(boolean $readOnly = true, boolean $persistent = false) : \Elastica\Response
Sets the cluster to read only.
Second param can be used to set it persistent
| boolean | $readOnly | |
| boolean | $persistent | 
$response
set(array  $settings) : \Elastica\Response
                Set settings for cluster.
| array | $settings | Raw settings (including persistent or transient) | 
getClient() : \Elastica\Client
Get the client.
request(array $data = array(), string $method = \Elastica\Request::GET) : \Elastica\Response
Sends settings request.
| array | $data | OPTIONAL Data array | 
| string | $method | OPTIONAL Transfer method (default = \Elastica\Request::GET) | 
Response object