pair.h

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#pragma once
 
namespace fl {
 
template <typename Key, typename Value> struct Pair {
    Key first = Key();
    Value second = Value();
    Pair() = default;
    Pair(const Key &k, const Value &v) : first(k), second(v) {}
};
 
// std compatibility
template <typename Key, typename Value> using pair = Pair<Key, Value>;
 
} // namespace fl