src/vs/workbench/contrib/codeEditor/browser/toggleMultiCursorModifier.ts/MultiCursorModifierContextKeyController/constructor
class MultiCursorModifierContextKeyController:	constructor(
		@IConfigurationService private readonly configurationService: IConfigurationService,
		@IContextKeyService contextKeyService: IContextKeyService
	) {
		this._multiCursorModifier = multiCursorModifier.bindTo(contextKeyService);

		this._update();
		configurationService.onDidChangeConfiguration((e) => {
			if (e.affectsConfiguration('editor.multiCursorModifier')) {
				this._update();
			}
		});
	}