toLong
Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)
fun toLong(unit: DurationUnit): Long
Returns the value of this duration expressed as a Long number of the specified unit.
If the value doesn't fit in the range of Long type, it is coerced into that range, see the conversion Double.toLong for details.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.time/-duration/to-long.html