let matches = new Set();  // Indices of sources that match search
  let elems = new Map();    // Mapping from source index to display elements
  let displayList = [];     // List of boxes to display.
  let actionMenuOn = false; // Is action menu visible?
  let actionTarget = null;  // Box on which action menu is operating.
  let diff = false;         // Are we displaying a diff?

def LegalizeNonMaxSuppressionV4 : Pat<
  (TF_NonMaxSuppressionV4Op $boxes, $scores, $max_output_size, $iou_threshold,
    $score_threshold, $pad_to_max_output_size),
  (TFL_NonMaxSuppressionV4Op $boxes, $scores, $max_output_size, $iou_threshold,
    $score_threshold)>;

def LegalizeNonMaxSuppressionV5 : Pat<
  (TF_NonMaxSuppressionV5Op $boxes, $scores, $max_output_size, $iou_threshold,

	// systems did not support the go resolver.
	// Keep it this way for better compatibility.
	// Perhaps we can revisit this some day.
	case "windows", "plan9":
		return true

	// Darwin pops up annoying dialog boxes if programs try to
	// do their own DNS requests, so prefer cgo.
	case "darwin", "ios":
		return true

	// DNS requests don't work on Android, so prefer the cgo resolver.
	// Issue #10714.
	case "android":

	retStr := "{"
	retStr = retStr + expirationStr + ","
	retStr += conditionStr
	retStr += "}"

	return []byte(retStr)
}

// newPostPolicyBytesV4 - creates a bare bones postpolicy string with key and bucket matches.
func newPostPolicyBytesV4(credential, bucketName, objectKey string, expiration time.Time) []byte {
	t := UTCNow()
	// Add the expiration date.