presto-resource-group-managers/src/main/java/io/prestosql/plugin/resourcegroups/db/DbResourceGroupsModule.java/DbResourceGroupsModule/configure
class DbResourceGroupsModule:    @Override
    public void configure(Binder binder)
    {
        configBinder(binder).bindConfig(DbResourceGroupConfig.class);
        binder.bind(ResourceGroupsDao.class).toProvider(MysqlDaoProvider.class).in(Scopes.SINGLETON);
        binder.bind(DbResourceGroupConfigurationManager.class).in(Scopes.SINGLETON);
        binder.bind(ResourceGroupConfigurationManager.class).to(DbResourceGroupConfigurationManager.class).in(Scopes.SINGLETON);
        newExporter(binder).export(DbResourceGroupConfigurationManager.class).withGeneratedName();
    }