src/PriorityConfigurationChain.php
public function add(ConfigurationInterface $config, $priority = 0)
    {
        $this->priorityList->insert($config, $priority);
        return $this;
    }
public function add(ConfigurationInterface $config, $priority = 0)
    {
        $this->priorityList->insert($config, $priority);
        return $this;
    }
public function add ( ConfigurationInterface $ config , $ priority = 0 ) { $ this -> priorityList -> insert ( $ config , $ priority ) ; return $ this ; }
Add a configuration driver to the chain

The configuration driver will be placed according to its priority.
Highest priority will be verified first

@param ConfigurationInterface $config
@param integer $priority

@return ConfigurationChainInterface self
Add a configuration driver to the chain