docs: def new_chain(table='filter', chain=None, table_type=None, hook=None, priority=None, family='ipv4'):
      '''
      .. versionadded:: 2014.7.0
  
      Create new chain to the specified table.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' nftables.new_chain filter input
  
          salt '*' nftables.new_chain filter input \\
                  table_type=filter hook=input priority=0
  
          salt '*' nftables.new_chain filter foo
  
          IPv6:
          salt '*' nftables.new_chain filter input family=ipv6
  
          salt '*' nftables.new_chain filter input \\
                  table_type=filter hook=input priority=0 family=ipv6
  
          salt '*' nftables.new_chain filter foo family=ipv6
      '''
      ret = {'comment': '',
             'result': False}
  
      if not chain:
          ret['comment'] = 'Chain needs to be specified'
          return ret
  
      res = check_table(table, family=family)
      if not res['result']:
          return res
  
      res = check_chain(table, chain, family=family)
      if res['result']:
          ret['comment'] = 'Chain {0} in table {1} in family {2} already exists'.\
                  format(chain, table, family)
          return ret
  
      nft_family = _NFTABLES_FAMILIES[family]
      cmd = '{0} add chain {1} {2} {3}'.\
            format(_nftables_cmd(), nft_family, table, chain)
      if table_type or hook or priority:
          if table_type and hook and six.text_type(priority):
              cmd = r'{0} \{{ type {1} hook {2} priority {3}\; \}}'.\
                      format(cmd, table_type, hook, priority)
          else:
              # Specify one, require all
              ret['comment'] = 'Table_type, hook, and priority required.'
              return ret
  
      out = __salt__['cmd.run'](cmd, python_shell=False)
  
      if not out:
          ret['comment'] = 'Chain {0} in table {1} in family {2} created'.\
                           format(chain, table, family)
          ret['result'] = True
      else:
          ret['comment'] = 'Chain {0} in table {1} in family {2} could not be created'.\
                           format(chain, table, family)
      return ret