A native library for GDExtension. The [GDExtension] resource type represents a [url=https://en.wikipedia.org/wiki/Shared_library]shared library[/url] which can expand the functionality of the engine. The [GDExtensionManager] singleton is responsible for loading, reloading, and unloading [GDExtension] resources. [b]Note:[/b] GDExtension itself is not a scripting language and has no relation to [GDScript] resources. $DOCS_URL/tutorials/scripting/gdextension/what_is_gdextension.html $DOCS_URL/tutorials/scripting/gdextension/gdextension_cpp_example.html Closes the current library. [b]Note:[/b] You normally should not call this method directly. This is handled automatically by [method GDExtensionManager.unload_extension]. Returns the lowest level required for this extension to be properly initialized (see the [enum InitializationLevel] enum). Initializes the library bound to this GDextension at the given initialization [param level]. [b]Note:[/b] You normally should not call this method directly. This is handled automatically by [method GDExtensionManager.load_extension]. Returns [code]true[/code] if this extension's library has been opened. Opens the library at the specified [param path]. [b]Note:[/b] You normally should not call this method directly. This is handled automatically by [method GDExtensionManager.load_extension]. The library is initialized at the same time as the core features of the engine. The library is initialized at the same time as the engine's servers (such as [RenderingServer] or [PhysicsServer3D]). The library is initialized at the same time as the engine's scene-related classes. The library is initialized at the same time as the engine's editor classes. Only happens when loading the GDExtension in the editor.