curl -i -X GET "https://api.box.com/2.0/files/12345/thumbnail.png" \
     -H "authorization: Bearer <ACCESS_TOKEN>"

client.files.get_file_thumbnail_by_id(
    thumbnail_file.id, GetFileThumbnailByIdExtension.PNG
)

await client.files.getFileThumbnailById(
  thumbnailFile.id,
  'png' as GetFileThumbnailByIdExtension,
);

try await client.files.getFileThumbnailById(fileId: thumbnailFile.id, extension_: GetFileThumbnailByIdExtension.png, downloadDestinationUrl: destinationPath)

client.getFiles().getFileThumbnailById(thumbnailFile.getId(), GetFileThumbnailByIdExtension.PNG)

await client.Files.GetFileThumbnailByIdAsync(fileId: thumbnailFile.Id, extension: GetFileThumbnailByIdExtension.Png);

"<string>"

{
  "type": "error",
  "status": 400,
  "code": "item_name_invalid",
  "message": "Method Not Allowed",
  "context_info": {
    "message": "Something went wrong"
  },
  "help_url": "https://developer.box.com/guides/api-calls/permissions-and-errors/common-errors/",
  "request_id": "abcdef123456"
}

{
  "type": "error",
  "status": 400,
  "code": "item_name_invalid",
  "message": "Method Not Allowed",
  "context_info": {
    "message": "Something went wrong"
  },
  "help_url": "https://developer.box.com/guides/api-calls/permissions-and-errors/common-errors/",
  "request_id": "abcdef123456"
}

{
  "type": "error",
  "status": 400,
  "code": "item_name_invalid",
  "message": "Method Not Allowed",
  "context_info": {
    "message": "Something went wrong"
  },
  "help_url": "https://developer.box.com/guides/api-calls/permissions-and-errors/common-errors/",
  "request_id": "abcdef123456"
}

{
  "type": "error",
  "status": 400,
  "code": "item_name_invalid",
  "message": "Method Not Allowed",
  "context_info": {
    "message": "Something went wrong"
  },
  "help_url": "https://developer.box.com/guides/api-calls/permissions-and-errors/common-errors/",
  "request_id": "abcdef123456"
}