Why is `flush_active_memtable` `#[doc(hidden)]`?

[danthegoodman1]

Trying to understand why this would be hidden if it's used in the examples

https://github.com/fjall-rs/lsm-tree/blob/main/src/tree/mod.rs#L548

https://github.com/fjall-rs/lsm-tree/blob/main/examples/kv/src/main.rs#L120

[marvin-j97]

lsm-tree and fjall more or less move in lockstep, so the API in lsm-tree changes based on fjall's needs, not really 100% following semver. I don't recommend using lsm-tree directly because it needs domain specific knowledge and plumbing fjall takes care of, so I haven't really paid attention too much to make it a stable API for external users.