src/Generics/Client/Session.php
public function get($key)
    {
        if (! isset($this->sessionContainer[$key])) {
            return null;
        }

        return $this->sessionContainer[$key];
    }
public function get($key)
    {
        if (! isset($this->sessionContainer[$key])) {
            return null;
        }

        return $this->sessionContainer[$key];
    }
Retrieve value from session storage for corresponding key

@param string $key
@return NULL|string