在BIM 360 API中，批量获取请求可能不会返回“上传区”文件夹中的所有属性。为了解决这个问题，可以使用以下代码示例中的过滤器来获取指定文件夹中的属性：

import requests
import json

# set the authorization token
token = "your_token_here"

# set the folder ID
folder_id = "your_folder_id_here"

# set the base URL
base_url = "https://developer.api.autodesk.com/data/v1/projects/{project_id}/folders/{folder_id}/contents"

# set the request headers
headers = {
    "Authorization": f"Bearer {token}",
    "Content-Type": "application/vnd.api+json"
}

# set the filter for the request
filter = {
  "jsonapi": {
    "version": "1.0"
  },
  "fields": {
    "items": "type,id,attributes.extension.type,attributes.extension.data,attributes.displayName",
    "folders": "type,id,attributes.displayName"
  }
}

# make the request
response = requests.get(base_url.format(project_id="your_project_id_here", folder_id=folder_id),
                        headers=headers, params={"filter": json.dumps(filter)})

# print the response
print(response.json())

通过在过滤器中明确定义所需的属性，可以确保在“上传区”文件夹中返回所需的属性。