src/Alexa.php
public function context($key = null)
    {
        if (is_null($key)) {
            return $this->context;
        } else {
            return array_get($this->context, $key);
        }
    }
public function context($key = null)
    {
        if (is_null($key)) {
            return $this->context;
        } else {
            return array_get($this->context, $key);
        }
    }
@param string|null $key

@return array|mixed|null