ensureInitialized static method
Returns the singleton instance of ResearchPackage. If it has not yet been initialized, this call makes sure to create and initialize it.
Implementation
static ResearchPackage ensureInitialized() => _instance;
Returns the singleton instance of ResearchPackage. If it has not yet been initialized, this call makes sure to create and initialize it.
static ResearchPackage ensureInitialized() => _instance;