text: /*
  g++ --std=c++20 -pthread -o ../_build/cpp/language_using_declaration.exe ./cpp/language_using_declaration.cpp && (cd ../_build/cpp/;./language_using_declaration.exe)
  https://en.cppreference.com/w/cpp/language/using_declaration
  */
  #include <iostream>
  #include <string>
  using std::string;
  int main()
  {
      string str = "Example";
      using std::cout;
      cout << str;
  }
  
  