human
Optimize this code:

async function fetchLanguageFile(languageCode) {
    const response = await fetch(
        `${amazon_language_files_url + languageCode}.json.gz?__TIMESTAMP__`,
        {
            method: 'GET',
        },
    );

    if (!response.ok) {
        Rollbar.error(`Fetch language file error: ${response.status}`)
    }
    
    return await response.json();
}
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
No
2. Is it implied multiple-choice question?
No
3. If two experts were independently asked the question, will the final answer be exactly the same?
No

--- Answer ---
open