Hi there 👋

It is all about recently updated PHPdoc for Container::get

/**
     * Returns an entry of the container by its name.
     *
     * @template T
     * @param string|class-string<T> $id Entry name or a class name.
     *
     * @return ($id is class-string<T> ? T : mixed)
     * @throws DependencyException Error while resolving the entry.
     * @throws NotFoundException No entry found for the given name.
     */
    public function get(string $id) : mixed

There is nothing preventing one to do $container->set(MyClass::class, "not my class type").

Therefore it is misleading pretending that $container->get(MyClass::class) will always return an instance of MyClass.

I had this unexpected behavior for I explicitly disable a class injection is a given context by doing $container->set(MyClass::class, null). And the class-name is still registered and getting it will return null and will not throw an exception.

With the v7.0.10, phpstan started telling my i do not need a nullsafe operand when using the $container->get(MyClass::class) result.

I would recommend reverting #912

Cheers and thank you for your work !