def genlmsg_user_hdr(gnlh):
return bytearray_ptr(gnlh.bytearray, GENL_HDRLEN)<EOL>
Return bytearray_ptr of the user header.

    https://github.com/thom311/libnl/blob/libnl3_2_25/lib/genl/genl.c#L242

    Calculates the bytearray_ptr of the user header based on the Generic Netlink message header.

    Positional arguments:
    gnlh -- Generic Netlink message header (genlmsghdr class instance).

    Returns:
    bytearray_ptr of the user header.