addMetaData method
Implementation
void addMetaData(String key, dynamic value) {
if (metaData == null) {
metaData = new Map<String, dynamic>();
}
metaData![key] = value;
}
void addMetaData(String key, dynamic value) {
if (metaData == null) {
metaData = new Map<String, dynamic>();
}
metaData![key] = value;
}