如何在Microsoft Translator中提供语言优先选项？

import requests

def translate_text(text, from_lang, to_lang):
    api_url = "https://api.cognitive.microsofttranslator.com/translate"

    headers = {
        "Ocp-Apim-Subscription-Key": "your_subscription_key",
        "Content-Type": "application/json"
    }

    params = {
        "api-version": "3.0",
        "from": from_lang,
        "to": to_lang
    }

    data = [{
        "text": text
    }]

    response = requests.post(api_url, headers=headers, params=params, json=data)
    translation = response.json()[0]["translations"][0]["text"]

    return translation

source_text = "Hello, world!"
source_lang = "en"
target_lang = "fr"

translated_text = translate_text(source_text, source_lang, target_lang)
print(translated_text)