docs: function Binding(toPath, fromPath) {
      // Configuration
      this._from = fromPath;
      this._to = toPath;
      this._oneWay = undefined;
  
      // State
      this._direction = undefined;
      this._readyToSync = undefined;
      this._fromObj = undefined;
      this._fromPath = undefined;
      this._toObj = undefined;
    }