Function emit_wpe_user_project_wrapper_testbench 

pub fn emit_wpe_user_project_wrapper_testbench(
    name: &str,
    n_vectors: usize,
    max_bytes: usize,
    memory: &OffchipMemory,
    caravel: &WpeCaravel,
    pads: HarnessDelay,
) -> String

emit_wpe_user_project_testbench driving the cell that is fabricated: Caravel’s user_project_wrapper, the engine reached through its mprj.