setLogLevel method
Change the log level dynamically for this instance
Implementation
void setLogLevel(int level) {
final current = _instanceLogger;
if (current is StreamLogger) {
current.logLevel = level;
} else if (current is CompositeLogger) {
for (final target in current.targets) {
if (target is StreamLogger) {
target.logLevel = level;
}
}
}
}