Jinzhu <******@****.***> 1756991596 +0800

		},
		{
			Name:     "generics-nested-joins-2",
			Manager:  GetUser("generics-nested-joins-manager-2", Config{Company: true, NamedPet: true}),
			NamedPet: &Pet{Name: "generics-nested-joins-namepet-2", Toy: Toy{Name: "generics-nested-joins-namepet-toy-2"}},
		},
	}

	ctx := context.Background()
	db := gorm.G[User](DB)

And then you won't have to worry about names like `Optional` and `Union`. 😎

#### Generic types { #generic-types }

These types that take type parameters in square brackets are called **Generic types** or **Generics**, for example:

//// tab | Python 3.10+

You can use the same builtin types as generics (with square brackets and types inside):

* `list`
* `tuple`
* `set`
* `dict`

- **Type safety** - Extensive use of generics and null-safe operations throughout the API
- **Resource management** - Proper handling of resources with utilities like `CloseableUtil` and `DisposableUtil`

### Key Architectural Patterns
- **Factory Pattern** - `BeanDescFactory` for creating bean descriptors, `ParameterizedClassDescFactory` for generic type handling

    Class<? super T> rawType = type.getRawType();
    @SuppressWarnings("unchecked") // Assume all default values are generics safe.
    T defaultValue = (T) defaultValues.getInstance(rawType);
    if (defaultValue != null) {
      return defaultValue;
    }
    @SuppressWarnings("unchecked") // ArbitraryInstances always returns generics-safe dummies.
    T value = (T) ArbitraryInstances.get(rawType);
    if (value != null) {
      return value;

    Class<? super T> rawType = type.getRawType();
    @SuppressWarnings("unchecked") // Assume all default values are generics safe.
    T defaultValue = (T) defaultValues.getInstance(rawType);
    if (defaultValue != null) {
      return defaultValue;
    }
    @SuppressWarnings("unchecked") // ArbitraryInstances always returns generics-safe dummies.
    T value = (T) ArbitraryInstances.get(rawType);
    if (value != null) {
      return value;

Klaus Post <******@****.***> 1756435188 +0200

Klaus Post <******@****.***> 1756435188 +0200

            // Generic rights should be in bits 28-31 (0xF0000000)
            assertTrue(ACE.GENERIC_ALL >= 0x10000000, "GENERIC_ALL should be in generic rights range");
            assertTrue(ACE.GENERIC_EXECUTE >= 0x10000000, "GENERIC_EXECUTE should be in generic rights range");
            assertTrue(ACE.GENERIC_WRITE >= 0x10000000, "GENERIC_WRITE should be in generic rights range");

    public static final int SYNCHRONIZE = 0x00100000; // 20
    /** Generic all permissions */
    public static final int GENERIC_ALL = 0x10000000; // 28
    /** Generic execute permission */
    public static final int GENERIC_EXECUTE = 0x20000000; // 29
    /** Generic write permission */
    public static final int GENERIC_WRITE = 0x40000000; // 30
    /** Generic read permission */
    public static final int GENERIC_READ = 0x80000000; // 31