src/vs/workbench/contrib/extensions/browser/extensionsActions.ts/InstallSpecificVersionOfExtensionAction/run
class InstallSpecificVersionOfExtensionAction:	override async run(): Promise<any> {
		const extensionPick = await this.quickInputService.pick(this.getExtensionEntries(), { placeHolder: localize('selectExtension', "Select Extension"), matchOnDetail: true });
		if (extensionPick && extensionPick.extension) {
			const action = this.instantiationService.createInstance(InstallAnotherVersionAction);
			action.extension = extensionPick.extension;
			await action.run();
			await this.instantiationService.createInstance(SearchExtensionsAction, extensionPick.extension.identifier.id).run();
		}
	}