docs: function fileEventListener(curr, prev) {
      
      that.emit('access', curr, prev);
        
      if (curr.nlink === 0) {
      
        that.emit('destroy', curr, prev);
        
      }
      
      if (+curr.mtime != +prev.mtime) {  
        
        if (curr.isDirectory() && prev.isDirectory()) {
          
          if (curr.nlink > prev.nlink) {
            
            that.emit('add', curr, prev);
            
          } else if (curr.nlink < prev.nlink) {
            
            that.emit('delete', curr, prev);
            
          }
           
        }
        
        that.emit('change', curr, prev);
      
      }
    
    }