code: def setup(self, links=None, force=False, only_links=False):
          
          if not links:
              links = []
  
          if only_links:
              logger.info("Only creating links")
              for link in links:
                  self.check_call('echo "tejdir:" %(queue)s > %(link)s' % {
                                  'queue': escape_queue(self.queue),
                                  'link': escape_queue(link)})
              return
  
          queue, depth = self._resolve_queue(self.queue)
          if queue is not None or depth > 0:
              if force:
                  if queue is None:
                      logger.info("Replacing broken link")
                  elif depth > 0:
                      logger.info("Replacing link to %s...", queue)
                  else:
                      logger.info("Replacing existing queue...")
                  self.check_call('rm -Rf %s' % escape_queue(self.queue))
              else:
                  if queue is not None and depth > 0:
                      raise QueueExists("Queue already exists (links to %s)\n"
                                        "Use --force to replace" % queue)
                  elif depth > 0:
                      raise QueueExists("Broken link exists\n"
                                        "Use --force to replace")
                  else:
                      raise QueueExists("Queue already exists\n"
                                        "Use --force to replace")
  
          queue = self._setup()
  
          for link in links:
              self.check_call('echo "tejdir:" %(queue)s > %(link)s' % {
                  'queue': escape_queue(queue),
                  'link': escape_queue(link)})
docs: Installs the runtime at the target location.
  
          This will not replace an existing installation, unless `force` is True.
  
          After installation, creates links to this installation at the specified
          locations.