mapError<E2> method

FutureResult<T, E2> mapError<E2>(
  1. E2 mapFunction(
    1. E error
    )
)

See documentation for Result.mapError method.

Implementation

FutureResult<T, E2> mapError<E2>(E2 Function(E error) mapFunction) async =>
    (await this).mapError(mapFunction);