multiply method
Implementation
Pair multiply(Pair o1, Pair o2) {
// Assuming the Pair class has a constructor that takes a UcumDecimal and a String
// and that UcumDecimal has a multiply method.
try {
final UcumDecimal resultValue = o1.value.multiply(o2.value);
final String resultCode = '${o1.unit}.${o2.unit}';
final Pair result = Pair(value: resultValue, unit: resultCode);
return getCanonicalForm(result);
} catch (e) {
throw UcumException(e.toString());
}
}