Code Size of coreMQTT (example generated with GCC for ARM Cortex-M)
File	With -O1 Optimization	With -Os Optimization
core_mqtt.c	4.1K	3.5K
core_mqtt_state.c	1.7K	1.3K
core_mqtt_serializer.c	2.8K	2.2K
Total estimates	8.6K	7.0K