Function operate 

async fn operate<R: Radio>(
    mac: &AsyncRefCell<Mac<TokioPlatform<R, TokioFileCounterStore, TokioFileKeyValueStore>, IDENTITIES, PEERS, CHANNELS, ACKS, TX, FRAME, DUP>>,
    identity: SoftwareIdentity,
    target: PublicKey,
    op: Operation,
    no_save: bool,
) -> Result<()>
where
    R::Error: Debug,