text: // AUTOGENERATED FILE - DO NOT MODIFY!
  // This file was generated by Djinni from enum.djinni
  
  #pragma once
  
  #include "../../handwritten-src/cpp/optional.hpp"
  #include <unordered_map>
  #include <unordered_set>
  #include <vector>
  
  namespace testsuite {
  
  enum class color;
  
  class EnumUsageInterface {
  public:
      virtual ~EnumUsageInterface() = default;
  
      virtual color e(color e) = 0;
  
      virtual std::experimental::optional<color> o(std::experimental::optional<color> o) = 0;
  
      virtual std::vector<color> l(const std::vector<color> & l) = 0;
  
      virtual std::unordered_set<color> s(const std::unordered_set<color> & s) = 0;
  
      virtual std::unordered_map<color, color> m(const std::unordered_map<color, color> & m) = 0;
  };
  
  }  // namespace testsuite
  