code: func (c *cachedLoader) MustGetInt(key string) int {
  	b, err := c.Get(key)
  	if err != nil {
  		panic(fmt.Sprintf("Could not fetch config (%s) %v", key, err))
  	}
  
  	var ret int
  	err = json.Unmarshal(b, &ret)
  	if err != nil {
  		panic(fmt.Sprintf("Could not unmarshal config (%s) %v", key, err))
  	}
  	return ret
  }
docs: // MustGetInt fetches the config and parses it into an int.  Panics on failure.