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diff --git a/src/common/param_package.h b/src/common/param_package.h
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+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <initializer_list>
+#include <string>
+#include <unordered_map>
+
+namespace Common {
+
+/// A string-based key-value container supporting serializing to and deserializing from a string
+class ParamPackage {
+public:
+ using DataType = std::unordered_map<std::string, std::string>;
+
+ ParamPackage() = default;
+ explicit ParamPackage(const std::string& serialized);
+ ParamPackage(std::initializer_list<DataType::value_type> list);
+ ParamPackage(const ParamPackage& other) = default;
+ ParamPackage(ParamPackage&& other) = default;
+
+ ParamPackage& operator=(const ParamPackage& other) = default;
+ ParamPackage& operator=(ParamPackage&& other) = default;
+
+ std::string Serialize() const;
+ std::string Get(const std::string& key, const std::string& default_value) const;
+ int Get(const std::string& key, int default_value) const;
+ float Get(const std::string& key, float default_value) const;
+ void Set(const std::string& key, const std::string& value);
+ void Set(const std::string& key, int value);
+ void Set(const std::string& key, float value);
+ bool Has(const std::string& key) const;
+
+private:
+ DataType data;
+};
+
+} // namespace Common