public function get($name)
    {
        if (is_null($name) || empty($name))
        {
            return null;
        }

        $loweredKey = strtolower($name);

        if (array_key_exists($loweredKey, $this->keyMap) === false)
        {
            return null;
        }

        $originalKey = $this->keyMap[$loweredKey];

        return $this->headerMap[$originalKey];
    }