GCP logging winston LoggingWinston severity

If you want to control severity at LoggingWinston.

https://stackoverflow.com/questions/58055551/structured-logs-in-google-cloud-run-not-being-parsed-using-winston-for-logging

const winston = require('winston');
const useFormat = winston.format.combine(
  winston.format((info, opts) => {
    let level = info.level.toUpperCase();
      if(level === 'VERBOSE') {
        level = 'DEBUG';
      }

      info['severity'] = level;
      delete info.level;
      return info;
  })(),
  winston.format.json());
const { LoggingWinston } = require('@google-cloud/logging-winston');
const loggingWinston = new LoggingWinston();
const logger = winston.createLogger({
  level: 'debug',
  format: useFormat,
  transports: [
    new winston.transports.Console(),
    loggingWinston
  ]
});