docs: def nlmsg_parse(nlh, hdrlen, tb, maxtype, policy):
      """Parse attributes of a Netlink message.
  
      https://github.com/thom311/libnl/blob/libnl3_2_25/lib/msg.c#L213
  
      Positional arguments:
      nlh -- Netlink message header (nlmsghdr class instance).
      hdrlen -- length of family specific header (integer).
      tb -- dictionary of nlattr instances (length of maxtype+1).
      maxtype -- maximum attribute type to be expected (integer).
      policy -- validation policy (nla_policy class instance).
  
      Returns:
      0 on success or a negative error code.
      """
      if not nlmsg_valid_hdr(nlh, hdrlen):
          return -NLE_MSG_TOOSHORT
      return nla_parse(tb, maxtype, nlmsg_attrdata(nlh, hdrlen), nlmsg_attrlen(nlh, hdrlen), policy)