class RSpec::Mocks::AnyInstance::Proxy

def perform_proxying(method_name, args, block, &target_proxy_block)
  recorder_value = @recorder.__send__(method_name, *args, &block)
  proxy_values   = @target_proxies.map(&target_proxy_block)
  FluentInterfaceProxy.new([recorder_value] + proxy_values)
end