fuse_chan_args
struct fuse_args* fuse_chan_args(struct fuse_chan* chan);
if (fuse_opt_insert_arg(fuse_chan_args(chan), 1, "-o") != 0) {
if (fuse_opt_insert_arg(fuse_chan_args(chan), 2, opts) != 0) {
fuse = __fuse_new(fuse_chan_args(chan), op, op_version, user_data);
mount_args = fuse_chan_args(chan);