@startuml
class Script {
  - getLineData()
  - getImageDataFromBlog(lineData)
  - saveImageDataToDrive(imageData)
}

class DriveService {
  - saveImageData(imageData)
}

class BlogService {
  - getImageData(lineData)
}

class ImageService {
  - downloadImage(imageUrl)
}

Script -> DriveService: save image data
Script -> BlogService: get image data
Script -> ImageService: download image
@enduml