docs: function(name, fullPath, type, lastModifiedDate, size){
      this.name = name || '';
      this.fullPath = fullPath || null;
      this.type = type || null;
      this.lastModifiedDate = lastModifiedDate || null;
      this.size = size || 0;
  
      // These store the absolute start and end for slicing the file.
      this.start = 0;
      this.end = this.size;
  }