public PipesPipeline<S, ?> back(final int numberedStep) {
return this.add(new BackFilterPipe(new Pipeline(FluentUtility.removePreviousPipes(this, numberedStep))));
}
public PipesPipeline<S, ?> back(final String namedStep) {
return this.add(new BackFilterPipe(new Pipeline(FluentUtility.removePreviousPipes(this, namedStep))));
}