begin method
void
begin()
Implementation
void begin() {
profiling = true;
startNano = DateTime.now().microsecondsSinceEpoch;
startMillis = DateTime.now().millisecondsSinceEpoch;
}
void begin() {
profiling = true;
startNano = DateTime.now().microsecondsSinceEpoch;
startMillis = DateTime.now().millisecondsSinceEpoch;
}