whole_func_string: function(datasetId, acknowledgementFields, callback) {
        return metrics.timeAsyncFunc(metrics.KEYS.MONGODB_OPERATION_TIME, doSaveUpdate)(datasetId, acknowledgementFields, callback);
      }
func_code_string: function(datasetId, acknowledgementFields, callback) {
        return metrics.timeAsyncFunc(metrics.KEYS.MONGODB_OPERATION_TIME, doSaveUpdate)(datasetId, acknowledgementFields, callback);
      }
func_documentation_string: Save the given sync update
  @param {String} datasetId
  @param {storage~Acknowledgement} acknowledgementFields
  @param {Function} callback