code: function RedisPool(opts) {
  
      if (!(this instanceof RedisPool)) {
          return new RedisPool(opts);
      }
  
      EventEmitter.call(this);
  
      opts = opts || {};
      var defaults = {
          host: '127.0.0.1',
          port: '6379',
          max: 50,
          idleTimeoutMillis: 10000,
          reapIntervalMillis: 1000,
          noReadyCheck: false,
          returnToHead: false,
          unwatchOnRelease: true,
          name: 'default',
          log: false,
          slowPool: {
              log: false,
              elapsedThreshold: 25
          },
          emitter: {
              statusInterval: 60000
          },
          commands: []
      };
  
      this.options = _.defaults(opts, defaults);
      this.pools = {};
      this.elapsedThreshold = this.options.slowPool.elapsedThreshold;
  
      // add custom Redis commands
      if (this.options.commands && this.options.commands.length) {
          this.options.commands.forEach(function(newCommand) {
              redis.add_command(newCommand);
          });
      }
  
      var self = this;
      setInterval(function() {
          Object.keys(self.pools).forEach(function(poolKey) {
              var pool = self.pools[poolKey];
              self.emit('status', {
                  name: self.options.name,
                  db: poolKey,
                  count: pool.getPoolSize(),
                  unused: pool.availableObjectsCount(),
                  waiting:  pool.waitingClientsCount()
              });
          });
      }, this.options.emitter.statusInterval);
  }
docs: Create a new multi database Redis pool.
  It will emit `status` event with information about each created pool.
  
  @param {Object} opts
  @returns {RedisPool}
  @constructor