putValue method
Implementation
RudderTraits putValue(Map<String, dynamic> map) {
if (map.remove("extras") != null) {
RudderLogger.logError(
"extras is a reserved key, hence it will be ignored. Please use any other key instead.");
}
Map<String, dynamic> extras =
__traitsMap.putIfAbsent("extras", () => <String, dynamic>{});
extras.addAll(map);
return this;
}