#includeIn this example, the `cppargs` library is used to parse command-line arguments. An `ArgumentParser` is created with a name and description, and three arguments are added - `--file`, `--verbose`, and `--help`. The `parseArgs` function is then called to parse the arguments passed in to the program. The `has` and `get` functions are used to check if an argument is present and retrieve its value, respectively. Finally, the `help` function is called if the `--help` argument is present, to display a help message. `cppargs` is the package library used in this example.#include int main(int argc, char** argv) { cppargs::ArgumentParser parser("My Program", "A simple program demonstrating cppargs"); parser.addArgument("--file", "-f", "The file to operate on"); parser.addArgument("--verbose", "-v", "Enable verbose output"); parser.addArgument("--help", "-h", "Show help"); auto args = parser.parseArgs(argc, argv); if (args.has("--help")) { std::cout << parser.help() << std::endl; return 0; } if (args.has("--file")) { std::string filename = args.get("--file"); std::cout << "Operating on file: " << filename << std::endl; } if (args.has("--verbose")) { std::cout << "Verbose output enabled" << std::endl; } return 0; }