code: def get_certifi_file():
      
      import certifi
      filename = certifi.where()
      if os.path.isfile(filename):
          return filename
      msg = "%s not found; check your certifi installation" % filename
      raise ValueError(msg)
docs: Get the SSL certifications installed by the certifi package.
      @return: the filename to the cert file
      @rtype: string
      @raises: ImportError when certifi is not installed or ValueError when
               the file is not found