Function fetch

nodedb-vector/src/rerank/pipeline.rs:208–210

(store: &'a HashMap<u32, Vec<f32>>)

    }

    fn fetch<'a>(store: &'a HashMap<u32, Vec<f32>>) -> impl FnMut(u32) -> Option<&'a [f32]> {
        move |id| store.get(&id).map(|v| v.as_slice())
    }

    /// Stub codec that encodes as raw LE f32 bytes and computes L2 distance.
    /// Reports `CodecName::Binary` so tests can request it via `VectorQuantization::Binary`.