Enum GetShared 

pub enum GetShared {
    Arc(Arc<Box<[u8]>>),
    Bytes(Vec<u8>),
}

Owned GET result for the FFI zero-copy shared lane (Store::get_shared_owned). Bulk values ride out as an Arc clone (no byte copy); small values as a plain Vec (one alloc — cheaper than a fresh Arc). The FFI’s shared free reconstructs whichever the tag says.

Variants

Arc(Arc<Box<[u8]>>)

Bulk value — the engine’s Arc, cloned. Zero byte copy.

Bytes(Vec<u8>)

Small value (Str/Int) — a plain owned Vec, one allocation.