code: def download_codecov(session: nox.Session) -> None:
      system = platform.system().lower()
      if system == "darwin":
          system = "macos"
      url = f"https://uploader.codecov.io/latest/{system}/codecov"
      if system == "windows":
          url += ".exe"
          local_file = "codecov.exe"
      else:
          local_file = "codecov"
  
      session.run(
          "curl",
          "-o",
          local_file,
          url,
          external=True,
      )
  
      session.run("chmod", "+x", local_file, external=True)
  
file_path: wandb/noxfile.py
imports: import os
  import platform
  import nox
label_desc: Use image node_id 6 for calling a global function with example usage: download_codecov(session) without return types