text: #ifndef INCLUDE_METRICS_JSON_RENDERER_HPP_
  #define INCLUDE_METRICS_JSON_RENDERER_HPP_
  
  #include <string>
  
  #include "metrics/Types.hpp"
  
  namespace eventhub {
  namespace metrics {
  
  class JsonRenderer {
  public:
    static const std::string RenderMetrics(AggregatedMetrics&& metrics);
  };
  
  } // namespace metrics
  } // namespace eventhub
  
  #endif // INCLUDE_METRICS_JSON_RENDERER_HPP_
  