What are the ttl and generation arguments for in the replies?

[sbstp]

I can't seem to find documentation in this repo, on Google, or in the libfuse docs about what these arguments do.

[sbstp]

I did more digging in the code and ended up landing on this page https://man7.org/linux/man-pages/man4/fuse.4.html (Fuse ABI).

If someone ends up here in the future, TTL is related to getattr caching (see above)

For performance reasons, these attributes may be cached in
the kernel for a specified duration of time. While the
cache timeout has not been exceeded, the attributes will
be served from the cache and will not cause additional
FUSE_GETATTR requests.

For generation it says

The combination of nodeid and generation must be unique
for the filesystem's lifetime.

My understanding is that this is used to differentiate inodes if the filesystem is remounted.