title: How to use CIDEr metric
body: <p>I see that CIDEr is a universal metric in Image Captioning.</p>
  <p>I want to use this metric on my project, but I can't find any library. There is few info. CIDEr can only be seen in paper. And I can have searched just BLUE library which is used to evaluate NLP.</p>
  <p>Anybody knows how to use this metric?</p>
  <p>If there is no way, how can I evaluate my image-captioning model?</p>
  <p>p.s. I use OFA model on my project.</p>