public int Start(NngFlag flags) => nng_dialer_start(NngDialer, flags);
public int Start(NngFlag flags) => nng_dialer_start(NativeNngStruct, flags);
public int Start(NngFlag flags) => nng_listener_start(NngListener, flags);
public int Start(NngFlag flags) => nng_listener_start(NativeNngStruct, flags);