docs: function Strategy(options, verify) {
    if (typeof options == 'function') {
      verify = options;
      options = {};
    }
    if (!verify) throw new Error('OAuth 2.0 client password strategy requires a verify function');
  
    passport.Strategy.call(this);
    this.name = 'oauth2-client-password';
    this._verify = verify;
    this._passReqToCallback = options.passReqToCallback;
  }