pub fn gated_delta_step(p: GatedDeltaStep<'_>) -> Result<Vec<f32>, EngineError>Expand description
One-token Gated DeltaNet recurrence (Qwen3.5 / Bonsai linear attention).
state is [n_heads * dk * dv] (per-head S[dk, dv]). q/k are
[n_heads * dk], v [n_heads * dv], g/beta [n_heads].