Function dot_general_with_backend_into 

pub fn dot_general_with_backend_into<T, B>(
    c: StridedViewMut<'_, T>,
    a: &StridedView<'_, T>,
    b: &StridedView<'_, T>,
    config: &DotGeneralConfig<'_>,
    alpha: T,
    beta: T,
) -> Result<(), EinsumError>
where
    T: ScalarBase,
    B: Backend<T>,

Compute C = alpha * dot_general(A, B) + beta * C with an explicit backend.