// to block indefinitely.
	pollsubs := subs
	if delay >= 0 {
		timeout := &subs[0]
		clock := timeout.u.subscriptionClock()
		clock.timeout = uint64(delay)
	} else {
		pollsubs = subs[1:]
	}

	if len(pollsubs) == 0 {
		unlock(&mtx)
		return gList{}, 0
	}

	evts = evts[:len(pollsubs)]
	clear(evts)

retry:
	var nevents size

declare -r PULLS=( "$@" )

function join { local IFS="$1"; shift; echo "$*"; }
PULLDASH=$(join - "${PULLS[@]/#/#}") # Generates something like "#12345-#56789"
declare -r PULLDASH
PULLSUBJ=$(join " " "${PULLS[@]/#/#}") # Generates something like "#12345 #56789"
declare -r PULLSUBJ

echo "+++ Updating remotes..."
git remote update "${UPSTREAM_REMOTE}" "${FORK_REMOTE}"

if ! git log -n1 --format=%H "${BRANCH}" >/dev/null 2>&1; then

// polyAdd adds two ringElements or nttElements.
func polyAdd[T ~[n]fieldElement](a, b T) (s T) {
	for i := range s {
		s[i] = fieldAdd(a[i], b[i])
	}
	return s
}

// polySub subtracts two ringElements or nttElements.
func polySub[T ~[n]fieldElement](a, b T) (s T) {
	for i := range s {
		s[i] = fieldSub(a[i], b[i])
	}
	return s
}

// polyByteEncode appends the 384-byte encoding of f to b.
//