code: func (o *OAuthSession) SubredditComments(subreddit string) ([]*Comment, error) {
  	baseURL := "https://www.reddit.com"
  
  	if subreddit != "" {
  		baseURL += "/r/" + subreddit
  	}
  
  	subCommentsURL := baseURL + "/comments.json"
  
  	req := request{
  		url:       subCommentsURL,
  		useragent: o.UserAgent,
  	}
  
  	body, err := req.getResponse()
  	if err != nil {
  		return nil, err
  	}
  
  	var comments interface{}
  	if err = json.NewDecoder(body).Decode(&comments); err != nil {
  		return nil, err
  	}
  
  	helper := new(helper)
  	helper.buildComments(comments)
  	return helper.comments, nil
  }
docs: // SubredditComments fetches all the new comments in a subreddit, and returns them in a slice of Comment structs
  // This function uses www.reddit.com instead of the OAuth API as the latter doesn't have an endpoint for a particular subreddit's comments