def options
      opts = {}
      VALID_CONFIG_KEYS.each_key do |k|
        opts.merge!(k => send(k))
      end
      opts
    end
def options
      opts = {}
      VALID_CONFIG_KEYS.each_key do |k|
        opts.merge!(k => send(k))
      end
      opts
    end
Return the current configuration options as a Hash

 @return [Hash] The configuration for gruf, represented as a Hash