public function getMetadata($pluginName, $key)
    {
        return isset($this->requestMetadata[$pluginName][$key]) ? $this->requestMetadata[$pluginName][$key] : null;
    }
public function getMetadata($pluginName, $key)
    {
        return isset($this->requestMetadata[$pluginName][$key]) ? $this->requestMetadata[$pluginName][$key] : null;
    }
public function getMetadata ( $ pluginName , $ key ) { return isset ( $ this -> requestMetadata [ $ pluginName ] [ $ key ] ) ? $ this -> requestMetadata [ $ pluginName ] [ $ key ] : null ; }
Get a request metadata value. Returns `null` if none exists.

@param string $pluginName eg, `'Actions'`, `'Goals'`, `'YourPlugin'`
@param string $key
@return mixed
Get a request metadata value . Returns null if none exists .