docs: def prepare(self):
          '''
          Run the preparation sequence required to start a salt-api daemon.
  
          If sub-classed, don't **ever** forget to run:
  
              super(YourSubClass, self).prepare()
          '''
          super(SaltAPI, self).prepare()
  
          try:
              if self.config['verify_env']:
                  logfile = self.config['log_file']
                  if logfile is not None and not logfile.startswith(('tcp://',
                                                                     'udp://',
                                                                     'file://')):
                      # Logfile is not using Syslog, verify
                      with salt.utils.files.set_umask(0o027):
                          verify_files([logfile], self.config['user'])
          except OSError as err:
              log.exception('Failed to prepare salt environment')
              self.shutdown(err.errno)
  
          self.setup_logfile_logger()
          verify_log(self.config)
          log.info('Setting up the Salt API')
          self.api = salt.client.netapi.NetapiClient(self.config)
          self.daemonize_if_required()
          self.set_pidfile()