code: def sync_auth(saltenv='base', extmod_whitelist=None, extmod_blacklist=None):
      '''
      Sync execution modules from ``salt://_auth`` to the master
  
      saltenv : base
          The fileserver environment from which to sync. To sync from more than
          one environment, pass a comma-separated list.
  
      extmod_whitelist : None
          comma-separated list of modules to sync
  
      extmod_blacklist : None
          comma-separated list of modules to blacklist based on type
  
      CLI Example:
  
      .. code-block:: bash
  
          salt-run saltutil.sync_auth
      '''
      return salt.utils.extmods.sync(__opts__, 'auth', saltenv=saltenv, extmod_whitelist=extmod_whitelist,
                                     extmod_blacklist=extmod_blacklist)[0f sync_auth(saltenv='base', extmod_whitelist=None, extmod_blacklist=None):
      '''
      Sync execution modules from ``salt://_auth`` to the master
  
      saltenv : base
          The fileserver environment from which to sync. To sync from more than
          one environment, pass a comma-separated list.
  
      extmod_whitelist : None
          comma-separated list of modules to sync
  
      extmod_blacklist : None
          comma-separated list of modules to blacklist based on type
  
      CLI Example:
  
      .. code-block:: bash
  
          salt-run saltutil.sync_auth
      '''
      return salt.utils.extmods.sync(__opts__, 'auth', saltenv=saltenv, extmod_whitelist=extmod_whitelist,
                                     extmod_blacklist=extmod_blacklist)[0]
docs: Sync execution modules from ``salt://_auth`` to the master
  
      saltenv : base
          The fileserver environment from which to sync. To sync from more than
          one environment, pass a comma-separated list.
  
      extmod_whitelist : None
          comma-separated list of modules to sync
  
      extmod_blacklist : None
          comma-separated list of modules to blacklist based on type
  
      CLI Example:
  
      .. code-block:: bash
  
          salt-run saltutil.sync_auth