在不使用三腿式令牌的情况下，在Autodesk集成中搜索文件夹的解决方案是使用二腿式令牌进行身份验证。

以下是一个Python代码示例，它使用二腿式令牌来搜索Autodesk中的文件夹：

import requests
import json

# Variables
base_url = "https://developer.api.autodesk.com"
client_id = ""
client_secret = ""
folder_id = ""
access_token = ""

# Get 2-legged access token
def get_access_token():
    url = base_url + "/authentication/v1/authenticate"
    scope = "data:read data:write data:create data:search bucket:create bucket:read account:read account:write"

    payload = {
        "client_id": client_id,
        "client_secret": client_secret,
        "grant_type": "client_credentials",
        "scope": scope
    }

    response = requests.post(url, data=payload)
    return json.loads(response.text)["access_token"]

# Search folders
def search_folders():
    headers = {
        "Authorization": "Bearer " + access_token,
        "Content-Type": "application/vnd.api+json"
    }

    url = base_url + "/data/v1/projects/{}/search".format(folder_id)
    payload = {
        "jsonapi": {
          "version": "1.0"
        },
        "filter": {
          "type": "folder",
          "attributes": {
            "name": "myFolder"
          }
        }
    }

    response = requests.post(url, headers=headers, data=json.dumps(payload))
    return json.loads(response.text)

access_token = get_access_token()
search_result = search_folders()
print(search_result)