docs: def nlmsg_inherit(hdr=None):
      """Allocate a new Netlink message and inherit Netlink message header.
  
      https://github.com/thom311/libnl/blob/libnl3_2_25/lib/msg.c#L322
  
      Allocates a new Netlink message and inherits the original message header. If `hdr` is not None it will be used as a
      template for the Netlink message header, otherwise the header is left blank.
  
      Keyword arguments:
      hdr -- Netlink message header template (nlmsghdr class instance).
  
      Returns:
      Newly allocated Netlink message (nl_msg class instance).
      """
      nm = nlmsg_alloc()
      if hdr:
          new = nm.nm_nlh
          new.nlmsg_type = hdr.nlmsg_type
          new.nlmsg_flags = hdr.nlmsg_flags
          new.nlmsg_seq = hdr.nlmsg_seq
          new.nlmsg_pid = hdr.nlmsg_pid
      return nm