# runWithIOOverrides<R> method

R runWithIOOverrides <R>(R body(), IOOverrides overrides, { ZoneSpecification zoneSpecification, Function onError })

Runs `body` in a fresh Zone using the overrides found in `overrides`.

Note that `overrides` should be an instance of a class that extends IOOverrides.

## Implementation

    static R runWithIOOverrides<R>(R body(), IOOverrides overrides,
        {ZoneSpecification zoneSpecification, Function onError}) {
      return _asyncRunZoned<R>(body,
          zoneValues: {_ioOverridesToken: overrides},
          zoneSpecification: zoneSpecification,
          onError: onError);
    }