getLunarDateNext static method
Get Lunar Date after rangeDays from fromDate.
The fromDate need be a object of DateTime or LunarDateTime.
If passing another type the result will return null.
You can pass the negative for date before.
Implementation
static LunarDateTime? getLunarDateNext(
{required dynamic fromDate, required int rangeDays}) {
var sld = _newDate(fromDate, rangeDays);
return (sld == null)
? null
: FullCalender(date: sld, timeZone: 7).lunarDate;
}