Windows PowerShell에 다음과 같이 입력
(New-Object Net.WebClient).DownloadFile("<https://dl.google.com/dl/cloudsdk/channels/rapid/GoogleCloudSDKInstaller.exe>", "$env:Temp\\GoogleCloudSDKInstaller.exe")
& $env:Temp\\GoogleCloudSDKInstaller.exe
gcloud init
gcloud auth application-default login
echo %GOOGLE_APPLICATION_CREDENTIALS%
pip install google-cloud-documentai