export interface IDriveService {
  getOrCreateFolder(folderName: string, parentFolderId: string): GoogleAppsScript.Drive.Folder
  saveFile(blob: GoogleAppsScript.Base.Blob, folderId: string): GoogleAppsScript.Drive.File
  getFiles(folderId: string): GoogleAppsScript.Drive.File[]
  getFileById(id: string): GoogleAppsScript.Drive.File
  renameFile(fileId: string, newName: string): void
  trashFile(fileId: string): void
  updateFileProperties(fileId: string, properties: {[key: string]: string}): void
  createFile(blob: GoogleAppsScript.Base.Blob): GoogleAppsScript.Drive.File
  getFileProperties(fileId: string): {[key: string]: string}
}