@Override
  protected GrAbstractInplaceIntroducer<GrIntroduceConstantSettings> getIntroducer(@NotNull GrIntroduceContext context, @NotNull OccurrencesChooser.ReplaceChoice choice) {
    final Ref<GrIntroduceContext> contextRef = Ref.create(context);

    if (context.getStringPart() != null) {
      extractStringPart(contextRef);
    }

    return new GrInplaceConstantIntroducer(contextRef.get(), choice);
  }
@Override
  protected GrAbstractInplaceIntroducer<GrIntroduceConstantSettings> getIntroducer(@NotNull GrIntroduceContext context, @NotNull OccurrencesChooser.ReplaceChoice choice)