code: func (s Session) RedditorComments(username string, params ListingOptions) ([]*Comment, error) {
  	v, err := query.Values(params)
  	if err != nil {
  		return nil, err
  	}
  
  	baseUrl := "https://www.reddit.com"
  
  	// If username given, add to URL
  	if username != "" {
  		baseUrl += "/user/" + username
  	}
  
  	redditUrl := fmt.Sprintf(baseUrl+"/comments.json?%s", v.Encode())
  
  	req := request{
  		url:       redditUrl,
  		useragent: s.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: // RedditorComments returns a slice of Comments from a given Reddit user name.