如何使用python高效地将国家信息添加到包含mongoDB坐标的文档中？

from pymongo import MongoClient
import requests

client = MongoClient('mongodb://localhost:27017/')
db = client['your_database_name']
collection = db['your_collection_name']

documents = collection.find({})

for document in documents:
    latitude = document['latitude']
    longitude = document['longitude']
    url = f'https://api.bigdatacloud.net/data/reverse-geocode-client?latitude={latitude}&longitude={longitude}&localityLanguage=en'
    response = requests.get(url)
    if response.status_code == 200:
        data = response.json()
        country = data['countryName']
        document['country'] = country
        collection.save(document)