maybeWhen<TResult extends Object?> method Null safety

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. {TResult set(
    1. Update<DeviceId>? deviceId,
    2. Update<int>? width,
    3. Update<int>? height,
    4. Update<double>? frameRate,
    5. MediaTrackFacingModeUpdate? facingMode
    )?,
  2. required TResult orElse(
      )}
    )
    inherited

    Implementation

    @optionalTypeArgs
    TResult maybeWhen<TResult extends Object?>({
      TResult Function(
              Update<DeviceId>? deviceId,
              Update<int>? width,
              Update<int>? height,
              Update<double>? frameRate,
              MediaTrackFacingModeUpdate? facingMode)?
          set,
      required TResult orElse(),
    }) =>
        throw _privateConstructorUsedError;