docs: def _key_deploy_run(self, host, target, re_run=True):
          '''
          The ssh-copy-id routine
          '''
          argv = [
              'ssh.set_auth_key',
              target.get('user', 'root'),
              self.get_pubkey(),
          ]
  
          single = Single(
                  self.opts,
                  argv,
                  host,
                  mods=self.mods,
                  fsclient=self.fsclient,
                  thin=self.thin,
                  **target)
          if salt.utils.path.which('ssh-copy-id'):
              # we have ssh-copy-id, use it!
              stdout, stderr, retcode = single.shell.copy_id()
          else:
              stdout, stderr, retcode = single.run()
          if re_run:
              target.pop('passwd')
              single = Single(
                      self.opts,
                      self.opts['argv'],
                      host,
                      mods=self.mods,
                      fsclient=self.fsclient,
                      thin=self.thin,
                      **target)
              stdout, stderr, retcode = single.cmd_block()
              try:
                  data = salt.utils.json.find_json(stdout)
                  return {host: data.get('local', data)}
              except Exception:
                  if stderr:
                      return {host: stderr}
                  return {host: 'Bad Return'}
          if salt.defaults.exitcodes.EX_OK != retcode:
              return {host: stderr}
          return {host: stdout}