Made use of std::function ESP8266-specific.
Made use of std::function ESP8266-specific.

mknjc/pubsubclient,knolleary/pubsubclient,rubenqba/pubsubclient,knolleary/pubsubclient,tomn46037/pubsubclient,knolleary/pubsubclient,mknjc/pubsubclient,tomn46037/pubsubclient,tectiv3/pubsubclient,diegopx/pubsubclient,tomn46037/pubsubclient,rubenqba/pubsubclient,diegopx/pubsubclient,rubenqba/pubsubclient,mknjc/pubsubclient,plugplayco/plugplay-arduino-mqtt,tectiv3/pubsubclient,tectiv3/pubsubclient,diegopx/pubsubclient