fun toLong(unit: DurationUnit): Long
Returns the value of this duration expressed as a Long number of the specified unit.
If the result doesn't fit in the range of Long type, it is coerced into that range:
- Long.MIN_VALUE is returned if it's less than
- Long.MAX_VALUE is returned if it's greater than
An infinite duration value is converted either to Long.MAX_VALUE or Long.MIN_VALUE depending on its sign.