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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def genl_register(ops):
 """Register Generic Netlink family backed cache. https://github.com/thom311/libnl/blob/libnl3_2_25/lib/genl/mngt.c#L241 Same as genl_register_family() but additionally registers the specified cache operations using nl_cache_mngt_register() and associates it with the Generic Netlink family. Positional arguments: ops -- cache operations definition (nl_cache_ops class instance). Returns: 0 on success or a negative error code. """

    if ops.co_protocol != NETLINK_GENERIC:
        return -NLE_PROTO_MISMATCH
    if ops.co_hdrsize < GENL_HDRSIZE(0):
        return -NLE_INVAL
    if ops.co_genl is None:
        return -NLE_INVAL

    ops.co_genl.o_cache_ops = ops
    ops.co_genl.o_hdrsize = ops.co_hdrsize - GENL_HDRLEN
    ops.co_genl.o_name = ops.co_msgtypes[0].mt_name
    ops.co_genl.o_id = ops.co_msgtypes[0].mt_id
    ops.co_msg_parser = genl_msg_parser

    err = genl_register_family(ops.co_genl)
    if err < 0:
        return err
    return nl_cache_mngt_register(ops)