Function rcudnn_sys::cudnnCreatePersistentRNNPlan

pub unsafe extern "C" fn cudnnCreatePersistentRNNPlan(
    rnnDesc: cudnnRNNDescriptor_t, 
    minibatch: c_int, 
    dataType: cudnnDataType_t, 
    plan: *mut cudnnPersistentRNNPlan_t
) -> cudnnStatus_t