code: async function() {
      const oThis = this
        , existingBrandedTokens = await oThis._loadBrandedTokenConfig()
      ;
  
      if (existingBrandedTokens[oThis.uuid]) {
        logger.error("* Branded token uuid already registered and present in BT config file");
        process.exit(1);
      }
  
      existingBrandedTokens[oThis.uuid] = {
        Name: oThis.btName,
        Symbol: oThis.btSymbol,
        ConversionFactor: oThis.btConversionFactor,
        Reserve: oThis.reserveAddress,
        ReservePassphrase: oThis.reservePassphrase,
        UUID: oThis.uuid,
        ERC20: oThis.erc20
      };
  
      logger.info("* Branded token config:", existingBrandedTokens[oThis.uuid]);
  
      return tokenHelper.addBrandedToken(existingBrandedTokens);
    }
docs: Update branded token details
  
  @return {promise<object>} - branded tokens list
  @private