def dump_cache_fixtures!
      responses.each do |cache_key, response|
        path = filepath_for(cache_key)
        unless File.exist?(path)
          File.open(path, "wb") do |fp|
            fp.write(Marshal.dump(response))
          end
        end
      end
    end
def dump_cache_fixtures!
      responses.each do |cache_key, response|
        path = filepath_for(cache_key)
        unless File.exist?(path)
          File.open(path, "wb") do |fp|
            fp.write(Marshal.dump(response))
          end
        end
      end
    end
Dumps out any cached items to disk.