code: func (s *PullRequestsService) GetReview(ctx context.Context, owner, repo string, number int, reviewID int64) (*PullRequestReview, *Response, error) {
  	u := fmt.Sprintf("repos/%v/%v/pulls/%d/reviews/%d", owner, repo, number, reviewID)
  
  	req, err := s.client.NewRequest("GET", u, nil)
  	if err != nil {
  		return nil, nil, err
  	}
  
  	review := new(PullRequestReview)
  	resp, err := s.client.Do(ctx, req, review)
  	if err != nil {
  		return nil, resp, err
  	}
  
  	return review, resp, nil
  }
docs: // GetReview fetches the specified pull request review.
  //
  // TODO: Follow up with GitHub support about an issue with this method's
  // returned error format and remove this comment once it's fixed.
  // Read more about it here - https://github.com/google/go-github/issues/540
  //
  // GitHub API docs: https://developer.github.com/v3/pulls/reviews/#get-a-single-review