src/vs/editor/contrib/folding/folding.ts/UnfoldAllRegionsAction/constructor
class UnfoldAllRegionsAction:	constructor() {
		super({
			id: 'editor.unfoldAllMarkerRegions',
			label: nls.localize('unfoldAllMarkerRegions.label', "Unfold All Regions"),
			alias: 'Unfold All Regions',
			precondition: CONTEXT_FOLDING_ENABLED,
			kbOpts: {
				kbExpr: EditorContextKeys.editorTextFocus,
				primary: KeyChord(KeyMod.CtrlCmd | KeyCode.KEY_K, KeyMod.CtrlCmd | KeyCode.KEY_9),
				weight: KeybindingWeight.EditorContrib
			}
		});
	}