class ActiveSupport::Callbacks::Callback

def recompile!(_options, _per_key)
  _update_filter(self.options, _options)
  _update_filter(self.per_key, _per_key)
  @callback_id      = next_id
  @filter           = _compile_filter(@raw_filter)
  @compiled_options = _compile_options(@options)
                      _compile_per_key_options
end