docs: function onLoad() {
    var k, o, v;
    for(k in this._data) {
      o = this._data[k];
      v = o.value;
      try {
        this.verify(k, v);
  
        if(k === Types.SLAVEOF) {
          if(this.get(Types.CLUSTER_ENABLED) && v) {
            throw new Error('slaveof directive not allowed in cluster mode');
          }
        }
      }catch(e) {
        //console.dir('got include error');
        this.emit('error',
          new ConfigError(
            o.lineno, this._lines[o.lineno - 1] || null, this.getFile(), e));
      }
    }
  }