# File lib/lograge.rb, line 159
  def extend_base_controller_class(klass)
    append_payload_method = klass.instance_method(:append_info_to_payload)
    custom_payload_method = lograge_config.custom_payload_method

    klass.send(:define_method, :append_info_to_payload) do |payload|
      append_payload_method.bind(self).call(payload)
      payload[:custom_payload] = custom_payload_method.call(self)
    end
  end