code: function (data, isMerge) {
          if (isMerge === true) {
              deepMerge(conf, data);
          } else {
              conf = JSON.parse(JSON.stringify(data || {}))
          }
      }
docs: Set / merge data in configuration manager
  @param {object} data - configuration data
  @param {boolean} isMerge - should manager merge data to exist configuration