In stp.h flush parameter is uint: ```c++ typedef void (*STP_CALLBACK_DEBUG_STR_OUT) (const struct STP_BRIDGE* bridge, int portIndex, int treeIndex, const char* nullTerminatedString, unsigned int stringLength, unsigned int flush); ``` In documentation _StpCallback_DebugStrOut.html_ flush is bool type. All usages inside _stp_log.cpp_ provide true/false as flush argument