///|
pub using @core {
  type Weekday,
  type Month,
  type NaiveDate,
  type NaiveTime,
  type NaiveDateTime,
  type TimeDelta,
}

///|
pub using @tz {
  trait TimeZone,
  type Utc,
  type FixedOffset,
  type Location,
  type DateTime,
  type MappedLocalTime,
}