code: function writeToFile(file) {
  	if (!writeQueue[file]) {
  		return;
  	}
  
      // If not already saving then save, but using the object we make sure to take only
      // the last changes.
      // Truncate - https://stackoverflow.com/questions/35178903/overwrite-a-file-in-node-js
      fs.truncate(file, err => {
          const beforeSaveVersion = writeQueue[file].version;
          fse.outputJson(file, writeQueue[file].db, err => {
  			// Something has been saved while the filesystem was writing to file then
  			// save again
              if (beforeSaveVersion !== writeQueue[file].version) {
                  writeToFile(file);
              }
  
              resolveAllWriteQueueCallbacks(file, err);
              delete writeQueue[file];
          });
      });
  }
docs: Save db data to a file from the write queue.
  
  @param {string} file File path.
  @returns {void} Nothing