code: async function() {
      const oThis = this
      ;
      const addressObj = new generateAddress({chain: 'utility', passphrase: oThis.reservePassphrase})
        , addressResponse = await addressObj.perform();
      if (addressResponse.isFailure()) {
        logger.error("* Reserve address generation failed with error:", addressResponse);
        process.exit(1);
      }
      return Promise.resolve(addressResponse);
    }
docs: Generate reserve address
  
  @return {promise<result>}
  @private