code: def download_openblas(
      target,
      plat,
      ilp64,
      *,
      openblas_version=OPENBLAS_LONG,
      base_loc=BASE_LOC,
  ):
      osname, arch = plat.split("-")
      fnsuffix = {None: "", "64_": "64_"}[ilp64]
      filename = ""
      headers = {
          "User-Agent": (
              "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 ; "
              "(KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.3"
          )
      }
      suffix = None
      if osname == "linux":
          suffix = get_linux(arch)
          typ = "tar.gz"
      elif plat == "macosx-x86_64":
          suffix = "macosx_10_9_x86_64-gf_c469a42.tar.gz"
          typ = "tar.gz"
      elif plat == "macosx-arm64":
          suffix = "macosx_11_0_arm64-gf_5272328.tar.gz"
          typ = "tar.gz"
      elif osname == "win":
          if plat == "win-32":
              suffix = "win32-gcc_8_3_0.zip"
          else:
              suffix = "win_amd64-gcc_10_3_0.zip"
          typ = "zip"
  
      if not suffix:
          return None
      BASEURL = f"{base_loc}/{openblas_version}/download"
      filename = (
          f"{BASEURL}/openblas{fnsuffix}-{openblas_version}-{suffix}"
      )
      req = Request(url=filename, headers=headers)
  
      for _ in range(3):
          try:
              time.sleep(1)
              response = urlopen(req)
              break
          except HTTPError:
              print(f'Could not download "{filename}"', file=sys.stderr)
              raise
  
      length = response.getheader("content-length")
      if response.status != 200:
          print(f'Could not download "{filename}"', file=sys.stderr)
          return None
      print(f"Downloading {length} from {filename}", file=sys.stderr)
      data = response.read()
      print("Saving to file", file=sys.stderr)
      with open(target, "wb") as fid:
          fid.write(data)
      return typ
  
imports: import glob
  import os
  import platform
  import sysconfig
  import sys
  import shutil
  import tarfile
  import textwrap
  import time
  import zipfile
  from tempfile import mkstemp, gettempdir
  from urllib.request import urlopen, Request
  from urllib.error import HTTPError
label_desc: Use image node_id 6 for calling a global function with example usage: download_openblas(target, plat, ilp64) and returns: typ, None, None