private @Nullable NumberConversionContext getContext(@NotNull ActionContext actionContext) {
    PsiElement element = actionContext.findLeaf();
    NumberConversionContext context = element == null ? null : extract(element);
    if (context == null) {
      element = actionContext.findLeafOnTheLeft();
      context = element == null ? null : extract(element);
    }
    return context;
  }
private @Nullable NumberConversionContext getContext(@NotNull ActionContext actionContext)