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#pragma once

#include <util/stream/str.h>
#include <utility>
#include <util/generic/string.h>

namespace NPrivateStringBuilder {
    class TStringBuilder: public TString {
    public: 
        inline TStringBuilder() 
            : Out(*this) 
        { 
        } 

        TStringBuilder(TStringBuilder&& rhs)
            : TString(std::move(rhs))
            , Out(*this)
        {
        }

        TStringOutput Out; 
    }; 

    template <class T> 
    static inline TStringBuilder& operator<<(TStringBuilder& builder, const T& t) { 
        builder.Out << t; 

        return builder; 
    } 

    template <class T> 
    static inline TStringBuilder&& operator<<(TStringBuilder&& builder, const T& t) { 
        builder.Out << t; 

        return std::move(builder);
    } 
}

using TStringBuilder = NPrivateStringBuilder::TStringBuilder;