func GroupSize(msgs, maxPerMessage int) int {
	groupSize := msgs / maxPerMessage
	if msgs%maxPerMessage > 0 {
		groupSize++
	}
	return groupSize
}
// GroupSize returns the GroupSize/number of chunks.
GroupSize returns the GroupSize/number of chunks.
// GroupSize returns the GroupSize / number of chunks .
func GroupSize(msgs, maxPerMessage int) int {
	groupSize := msgs / maxPerMessage
	if msgs%maxPerMessage > 0 {
		groupSize++
	}
	return groupSize
}
func GroupSize ( msgs , maxPerMessage int ) int { groupSize := msgs / maxPerMessage if msgs % maxPerMessage > 0 { groupSize ++ } return groupSize }
GroupSize returns the GroupSize/number of chunks.
GroupSize returns the GroupSize / number of chunks .