Function qr_backend_in 

pub fn qr_backend_in<T>(
    session: &mut dyn Engine,
    tensor: Tensor,
) -> Result<(TypedTensor<T>, TypedTensor<T>), BackendLinalgError>
where
    T: BackendLinalgScalar,

QR of a typed tensor on a caller-held engine.

Errors

Returns BackendLinalgError under the same conditions as qr_backend.