type alias Temporal.DurationOptions
          
Unstable
Options for assigning fields using Duration.prototype.with() or entire
objects with Duration.from(), and for arithmetic with
Duration.prototype.add() and Duration.prototype.subtract().
optional
overflow: "constrain" | "balance"
      
    How to deal with out-of-range values
- In 'constrain'mode, out-of-range values are clamped to the nearest in-range value.
- In 'balance'mode, out-of-range values are resolved by balancing them with the next highest unit.
The default is 'constrain'.