const DB_COLUMN_PRIVATE_KEY = 'private_key';
const DB_COLUMN_PRIVATE_KEY_HASH = 'private_key_hash';
const DB_COLUMN_NODE_MODE = 'node_mode';
+ const DB_COLUMN_INTERNAL_UNL = 'internal_unl';
+ const DB_COLUMN_EXTERNAL_UNL = 'external_unl';
/**
* Protected constructor