class Settings {
  w3: W3 = {
    engine: undefined,
    provider: undefined,
  };
  scanFilter: any;
  registry: any;
  txHelper: any;

  constructor(scanFilter: any) {
    this.scanFilter = scanFilter;
  }
}

class W3 {
  engine: any;
  provider: any;
}

export { Settings, W3 };