common.go
func ElementSizeExceeded(field string, size, limit int) error {
	return fmt.Errorf("%s exceeds size limit; %d > %d", field, size, limit)
}
func ElementSizeExceeded(field string, size, limit int) error {
	return fmt.Errorf("%s exceeds size limit; %d > %d", field, size, limit)
}
// ElementSizeExceeded returns an error describing the violated size
// constraint. This function is used by the generated marshalling code.