@Override
    public void suggestOutputNames(ChainContext context, ChainVariable var) {
      PsiLambdaExpression lambda = LambdaRefactoringUtil.createLambda(myMethodRef, true);
      if(lambda != null) {
        PsiExpression body = LambdaUtil.extractSingleExpressionFromBody(lambda.getBody());
        if(body != null) {
          suggestFromExpression(var, context.getProject(), body);
        }
      }
    }
@Override
    public void suggestOutputNames(ChainContext context, ChainVariable var)