code: def fetch_source(self) -> None:
          
          import requests  # Do not import at the top that this file can be imported by setup.py
          with TemporaryFile() as temp_file:
              # Download the source archive
              request = requests.get(self.src_tar_gz_url)
              temp_file.write(request.content)
              # Rewind the file
              temp_file.seek(0)
              # Extract the content of the archive
              tar_file = tarfile.open(fileobj=temp_file)
              tar_file.extractall(path=_DEPS_PATH)
docs: Download the tar archive that contains the source code for the library.