Meaning of the cache capacity

[flosse]

Why is 255 always used for the capacity in the examples?
What exactly does this mean and what effects would a different value have?

[billythedummy]

Why is 255 always used for the capacity in the examples?

No real reason, just because it's the largest possible capacity size for generic I with type u8

What exactly does this mean and what effects would a different value have?

The capacity of the ConstLru is the maximum number of items you can store in it. Beyond that, attempting to insert an item with a new key will evict the least recently used item. See docs for https://docs.rs/const-lru/latest/const_lru/struct.ConstLru.html#method.insert. Increasing it will increase the size of the ConstLru by the number of bytes required to store the additional keys, values, and additional indexes