modules/express.js
function defaultSlots(slots) {
      return Array.isArray(slots)
        ? slots.slice()
        : googletag.pubads().getSlots().slice();
    }
function defaultSlots(slots) {
      return Array.isArray(slots)
        ? slots.slice()
        : googletag.pubads().getSlots().slice();
    }
function defaultSlots ( slots ) { return Array . isArray ( slots ) ? slots . slice ( ) : googletag . pubads ( ) . getSlots ( ) . slice ( ) ; }
a helper function to verify slots or get slots if not present
a helper function to verify slots or get slots if not present