export class UnknownObject extends Error {
  constructor(...args) {
    super(...args);
    this.name = "UnknownObject";
    //Error.captureStackTrace(this, UnknownObject)
  }
}

export class NoSuchFeature extends Error {
  constructor(...args) {
    super(...args);
    this.name = "NoSuchFeature";
    //Error.captureStackTrace(this, NoSuchFeature)
  }
}
