class_docstr: Class for all browsers which are to be started in the
  background.
class_docstr_tok: ["Class","for","all","browsers","which","are","to","be","started","in","the","background","."]
code: def open(self, url, new=0, autoraise=True):
      cmdline = [self.name] + [
          arg.replace("%s", url) for arg in self.args
      ]
      sys.audit("webbrowser.open", url)
      try:
          if sys.platform[:3] == "win":
              p = subprocess.Popen(cmdline)
          else:
              p = subprocess.Popen(
                  cmdline, close_fds=True, start_new_session=True
              )
          return p.poll() is None
      except OSError:
          return False
  
imports: import os
  import shlex
  import shutil
  import sys
  import subprocess
  import threading
  import warnings
label_desc: Use image node_id 1 for calling the BackgroundBrowser obj's underlying member method code with example usage: obj.open(url, new, autoraise) and returns: unknown, False