
error: Cannot read the value of o.inner.back because it is an output with type inv &uint<8>
    ┌─ ports.py:38
    │
 38 │ s.o.inner.back.assert_eq("0")
    │ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Cannot read from o.inner.back

  Help: The field has type inv &uint<8>
  Help: Since this is an output, only signals with non-inv type can be read

