#includeThis example defines a class `Person` with a name attribute and a `sayHello()` method. It then creates a `std::shared_ptr` to a `Person` with the name "Alice". `getName()` is called on the `std::shared_ptr` and the name of the `Person` object is printed to the console. Finally, `sayHello()` is called on the `std::shared_ptr` and the greeting is printed to the console. The `getName()` function is not provided by the C++ Standard Library, so it is difficult to determine the package/library that it comes from without more information. It is possible that it is a custom implementation or part of a third-party library.#include class Person { public: std::string name_; Person(std::string name) : name_(name) {} void sayHello() { std::cout << "Hello, my name is " << name_ << std::endl; } }; int main() { std::shared_ptr p1(new Person("Alice")); std::cout << p1.getName() << std::endl; // Output: Alice p1->sayHello(); // Output: Hello, my name is Alice return 0; }