meridiem method
Returns the meridiem indicator (AM/PM or locale equivalent).
hour is 0-23, minute is 0-59.
lowercase determines case of output.
Implementation
@override
String meridiem(int hour, int minute, {bool lowercase = false}) {
if (_meridiem != null) {
return _meridiem!(hour, minute, lowercase: lowercase);
}
return _base.meridiem(hour, minute, lowercase: lowercase);
}