code: def main():
      current_torch_version = _get_current_installed_torch_version()
      latest_torch_version = _get_latest_torch_version()
      torch_version_upper_limit = _get_torch_version_upper_limit()
  
      if (
          current_torch_version
          < latest_torch_version
          < torch_version_upper_limit
      ):
          raise RuntimeError(
              f"current torch version {current_torch_version} is behind "
              f"latest allowed torch version {latest_torch_version}"
          )
  
      print("All good!")
  
imports: from typing import Tuple, cast
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types