Period constructor
const
Period({})
Creates a Period.
The individual units of time may be negative. No normalization is performed.
Period(years: 1, minutes: -2); // 1 year, -2 minutes
Implementation
const Period({
this.years = 0,
this.months = 0,
this.days = 0,
this.hours = 0,
this.minutes = 0,
this.seconds = 0,
this.milliseconds = 0,
this.microseconds = 0,
});