class_docstr: `The Country211 Data Set <https://github.com/openai/CLIP/blob/main/data/country211.md>`_ from OpenAI.
  
  This dataset was built by filtering the images from the YFCC100m dataset
  that have GPS coordinate corresponding to a ISO-3166 country code. The
  dataset is balanced by sampling 150 train images, 50 validation images, and
  100 test images for each country.
  
  Args:
      root (string): Root directory of the dataset.
      split (string, optional): The dataset split, supports ``"train"`` (default), ``"valid"`` and ``"test"``.
      transform (callable, optional): A function/transform that takes in a PIL image and returns a transformed
          version. E.g, ``transforms.RandomCrop``.
      target_transform (callable, optional): A function/transform that takes in the target and transforms it.
      download (bool, optional): If True, downloads the dataset from the internet and puts it into
          ``root/country211/``. If dataset is already downloaded, it is not downloaded again.
code: def __init__(
      self,
      root: str,
      split: str = "train",
      transform: Optional[Callable] = None,
      target_transform: Optional[Callable] = None,
      download: bool = False,
  ) -> None:
      self._split = verify_str_arg(
          split, "split", ("train", "valid", "test")
      )
  
      root = Path(root).expanduser()
      self.root = str(root)
      self._base_folder = root / "country211"
  
      if download:
          self._download()
  
      if not self._check_exists():
          raise RuntimeError(
              "Dataset not found. You can use download=True to download it"
          )
  
      super().__init__(
          str(self._base_folder / self._split),
          transform=transform,
          target_transform=target_transform,
      )
      self.root = str(root)
  
file_path: vision/torchvision/datasets/country211.py
imports: from pathlib import Path
  from typing import Callable, Optional
  from .folder import ImageFolder
  from .utils import download_and_extract_archive, verify_str_arg
label_desc: Use image node_id 1 to create a new Country211 object from inherited base classes: ImageFolder with example: obj = Country211(root, split, transform, target_transform, download)