Function linear_weights 

pub fn linear_weights<F: TowerField + HardwareField + Into<Block128>>(
    layout: &OuterLayout,
    statement: &OuterStatement,
    records: &[TableRecord<'_, F>],
    eval: &EvalRecord<F>,
    tensor: &[F],
) -> Result<LinearBatch<F>>

Weights and target of the linear test on the rows assemble builds, computed from the records without building them.